Fix a large amount of whitespace issues in the code

Inconsistent tab indentation is annoying, especially if you set
your tab width to something other than 8 spaces. This commit fixes
indentation by converting all sets of 8 leading spaces to tabs.

Trailing tabs and spaces are also removed (even on lines consisting
of only tabs or spaces).

src/cmd/INIT/iffe.sh

@@ -2309,7 +2309,7 @@ int x;
 	# NOTE() support
 
 	case $ext in
-	*"<stdio.h>"*)	
+	*"<stdio.h>"*)
 		case $ext in
 		*"#define NOTE("*)
 			;;

src/cmd/INIT/mamake.c

@@ -582,7 +582,7 @@ static Dict_item_t *search(Dict_t *dict, char *name, int create)
 		if (!(cmp = strcmp(name, root->name)))
 			break;
 		else if (cmp < 0)
-		{	
+		{
 			if (root->left && (cmp = strcmp(name, root->left->name)) <= 0)
 			{
 				/* rotate(left, right) */
@@ -602,7 +602,7 @@ static Dict_item_t *search(Dict_t *dict, char *name, int create)
 			right->left = NULL;
 		}
 		else
-		{	
+		{
 			if (root->right && (cmp = strcmp(name, root->right->name)) >= 0)
 			{
 				/* rotate(right, left) */
@@ -3084,7 +3084,7 @@ int main(int argc, char **argv)
 	 */
 
 	if (SA_RESTART && state.maxjobs > 1)
-	{	
+	{
 		struct sigaction act;
 		sigemptyset(&empty_sigmask);
 		act.sa_handler = sigchld_dummy;

src/cmd/ksh93/DESIGN

@@ -115,7 +115,7 @@ sh directory:
 	8.	fcin.c contains code for reading and writing a character
 		at a time from a file or string.
 	9.	init.c contains initialization code and callbacks
-		for get and set functions for built-in variables.	
+		for get and set functions for built-in variables.
 	10.	io.o contains code for redirections and managing file
 		descriptors and file streams.
 	11.	jobs.c contains the code for job management.

src/cmd/ksh93/RELEASE88

@@ -135,7 +135,7 @@ of ksh.
 	then ${foo.bar} is equivalent to ${.top.bar}.  When used as the
 	index of a for or select loop, each assignment causes a
 	new name reference to occur.
-	
+
     l.	The KEYBD trap has been added which is triggered when a key
 	or escape sequence is typed while reading from the keyboard
 	in an edit mode.  This, combined with some new variables
@@ -220,7 +220,7 @@ of ksh.
 	2.  Functions declared as function name, preserve the old ksh
 	    semantics can be also used as the first argument to the dot (.)
 	    command to have them executed in a dot script environment.
-	
+
     c.	The command search rules have changed as follows:
 	1.  Special built-ins (those with a dagger in front of them) are
 	    executed first.
@@ -315,7 +315,7 @@ of ksh.
 	    timeout after n seconds when reading from a slow device.
 	3.  A -d char option has been added which causes the read
 	    to terminate at char rather than at new-line.
-	
+
     n.	The trap command has been changed as follows:
 	1.  Trap names can be either upper case or lower case.
 	2.  Trap -p only causes the specified trap values to be displayed.
@@ -409,7 +409,7 @@ of ksh.
     e.	There are far fewer global names.  This should make it
 	must easier to add built-in commands without worrying
 	about conflicts.
-		
+
     f.	The code uses the sfio library which makes it possible
 	to mix with stdio.
 

src/cmd/ksh93/bltins/alarm.c

@@ -2,7 +2,7 @@
 *                                                                      *
 *               This software is part of the ast package               *
 *          Copyright (c) 1982-2012 AT&T Intellectual Property          *
-*          Copyright (c) 2020-2023 Contributors to ksh 93u+m           *
+*          Copyright (c) 2020-2024 Contributors to ksh 93u+m           *
 *                      and is licensed under the                       *
 *                 Eclipse Public License, Version 2.0                  *
 *                                                                      *
@@ -164,7 +164,7 @@ void	sh_timetraps(void)
  */
 static char *setdisc(Namval_t *np, const char *event, Namval_t* action, Namfun_t *fp)
 {
-        struct tevent *tp = (struct tevent*)fp;
+	struct tevent *tp = (struct tevent*)fp;
 	if(!event)
 		return action ? Empty : (char*)ALARM;
 	if(strcmp(event,ALARM)!=0)

src/cmd/ksh93/bltins/enum.c

@@ -30,7 +30,7 @@ const char sh_optenum[] =
 	"For example, \benum bool=(false true)\b creates a Boolean variable "
 	"type of which variables may be declared like \bbool x=true y=false\b.]"
 "[+?If the list of \avalue\as is omitted, then \atypename\a must name an "
-    "indexed array variable with at least two elements.]" 
+    "indexed array variable with at least two elements.]"
 "[+?For more information, create a type, then use \atypename\a \b--man\b.]"
 "[+USE IN ARITHMETIC EXPRESSIONS?When an enumeration variable is used in an "
 	"arithmetic expression, its value is the index into the array that "
@@ -48,8 +48,8 @@ const char sh_optenum[] =
 "\n"
 "[+EXIT STATUS]"
     "{"
-        "[+0?Successful completion.]"
-        "[+>0?An error occurred.]"
+	"[+0?Successful completion.]"
+	"[+>0?An error occurred.]"
     "}"
 "[+SEE ALSO?\bksh\b(1), \btypeset\b(1).]"
 ;
@@ -69,30 +69,30 @@ static const char enum_type[] =
 	"It is an error for an arithmetic expression to assign a value "
 	"outside of that range. Decimal fractions are ignored.]"
 "[+?If no \aname\as are specified then the names and values of all "
-        "variables of this type are written to standard output.]"
+	"variables of this type are written to standard output.]"
 "[+?\b\f?\f\b is built in to the shell as a declaration command so that "
-        "field splitting and pathname expansion are not performed on "
-        "the arguments. Tilde expansion occurs on \avalue\a.]"
+	"field splitting and pathname expansion are not performed on "
+	"the arguments. Tilde expansion occurs on \avalue\a.]"
 "[r?Enables readonly. Once enabled, the value cannot be changed or unset.]"
 "[a?Indexed array. Each \aname\a is converted to an indexed "
-        "array of type \b\f?\f\b. If a variable already exists, the current "
-        "value will become index \b0\b.]"
+	"array of type \b\f?\f\b. If a variable already exists, the current "
+	"value will become index \b0\b.]"
 "[A?Associative array. Each \aname\a is converted to an associative "
-        "array of type \b\f?\f\b. If a variable already exists, the current "
-        "value will become subscript \b0\b.]"
+	"array of type \b\f?\f\b. If a variable already exists, the current "
+	"value will become subscript \b0\b.]"
 "[h]:[string?Used within a type definition to provide a help string  "
-        "for variable \aname\a. Otherwise, it is ignored.]"
+	"for variable \aname\a. Otherwise, it is ignored.]"
 "[S?Used with a type definition to indicate that the variable is shared by "
-        "each instance of the type. When used inside a function defined "
-        "with the \bfunction\b reserved word, the specified variables "
-        "will have function static scope. Otherwise, the variable is "
-        "unset prior to processing the assignment list.]"
+	"each instance of the type. When used inside a function defined "
+	"with the \bfunction\b reserved word, the specified variables "
+	"will have function static scope. Otherwise, the variable is "
+	"unset prior to processing the assignment list.]"
 "\n"
 "\n[name[=value]...]\n"
 "\n"
 "[+EXIT STATUS?]{"
-        "[+0?Successful completion.]"
-        "[+>0?An error occurred.]"
+	"[+0?Successful completion.]"
+	"[+>0?An error occurred.]"
 "}"
 
 "[+SEE ALSO?\benum\b(1), \btypeset\b(1)]"
@@ -293,7 +293,7 @@ int b_enum(int argc, char** argv, Shbltin_t *context)
 		memset(&optdisc,0,sizeof(optdisc));
 		optdisc.opt.infof = enuminfo;
 		optdisc.np = tp;
-		nv_addtype(tp, enum_type, &optdisc.opt, sizeof(optdisc)); 
+		nv_addtype(tp, enum_type, &optdisc.opt, sizeof(optdisc));
 	}
 	return error_info.errors != 0;
 }

src/cmd/ksh93/bltins/getopts.c

@@ -48,7 +48,7 @@ static int infof(Opt_t* op, Sfio_t* sp, const char* s, Optdisc_t* dp)
 		sfputr(sp,sh_mactry(stkfreeze(stkp,1)),-1);
 		stkset(stkp,savptr,savtop);
 	}
-        return 1;
+	return 1;
 }
 
 int	b_getopts(int argc,char *argv[],Shbltin_t *context)
@@ -61,7 +61,7 @@ int	b_getopts(int argc,char *argv[],Shbltin_t *context)
 	volatile int extended, r= -1;
 	struct checkpt buff, *pp;
 	Optdisc_t disc;
-        memset(&disc, 0, sizeof(disc));
+	memset(&disc, 0, sizeof(disc));
 	disc.version = OPT_VERSION;
 	disc.infof = infof;
 	value[1] = 0;
@@ -196,6 +196,6 @@ int	b_getopts(int argc,char *argv[],Shbltin_t *context)
 	else
 		nv_putval(np, opt_info.arg, NV_RDONLY);
 	sh_popcontext(&buff);
-        opt_info.disc = 0;
+	opt_info.disc = 0;
 	return r;
 }

src/cmd/ksh93/bltins/misc.c

@@ -440,7 +440,7 @@ int    b_wait(int n,char *argv[],Shbltin_t *context)
 int    b_bg(int n,char *argv[],Shbltin_t *context)
 {
 	int flag = **argv;
-	const char *optstr = sh_optbg; 
+	const char *optstr = sh_optbg;
 	NOT_USED(context);
 	if(*argv[0]=='f')
 		optstr = sh_optfg;

src/cmd/ksh93/bltins/mkservice.c

@@ -51,7 +51,7 @@ static const char mkservice_usage[] =
 		"to be read from one of the active connections.  It is "
 		"called with the file descriptor number that has data "
 		"to be read.  If the function returns a non-zero "
-		"value, this connection will be closed.]" 
+		"value, this connection will be closed.]"
 	"[+close?This function is invoked when the connection is closed.]"
 	"}"
 "[+?If \avarname\a is unset, then all active connection, and the service "
@@ -61,8 +61,8 @@ static const char mkservice_usage[] =
 "\nvarname service_path\n"
 "\n"
 "[+EXIT STATUS?]{"
-        "[+0?Success.]"
-        "[+>0?An error occurred.]"
+	"[+0?Success.]"
+	"[+>0?An error occurred.]"
 "}"
 "[+SEE ALSO?\beloop\b(1)]"
 ;
@@ -81,8 +81,8 @@ static const char eloop_usage[] =
 "\n"
 "[+EXIT STATUS?If no timeout is specified, \beloop\b will not return "
 	"unless interrupted.  Otherwise]{"
-        "[+0?The specified timeout interval occurred.]"
-        "[+>0?An error occurred.]"
+	"[+0?The specified timeout interval occurred.]"
+	"[+>0?An error occurred.]"
 "}"
 "[+SEE ALSO?\bmkservice\b(1)]"
 ;
@@ -207,7 +207,7 @@ static void process_stream(Sfio_t* iop)
 			close(fd);
 	}
 }
-				
+
 static int waitnotify(int fd, long timeout, int rw)
 {
 	Sfio_t	*special=0, **pstream;
@@ -335,8 +335,8 @@ static int Error(Service_t *sp, int level, const char* arg, ...)
 	if(sp->node)
 		nv_unset(sp->node);
 	free(sp);
-        errorv(NULL, ERROR_exit(1), ap);
-        va_end(ap);
+	errorv(NULL, ERROR_exit(1), ap);
+	va_end(ap);
 	return 0;
 }
 
@@ -451,7 +451,7 @@ int	b_mkservice(int argc, char** argv, Shbltin_t *context)
 		sp->fd = fd;
 	np = nv_open(var,sh.var_tree,NV_ARRAY|NV_VARNAME);
 	sp->node = np;
-	nv_putval(np, path, 0); 
+	nv_putval(np, path, 0);
 	nv_stack(np, (Namfun_t*)sp);
 	service_add(sp);
 	return 0;

src/cmd/ksh93/bltins/print.c

@@ -469,27 +469,27 @@ static int echolist(Sfio_t *outfile, int raw, char *argv[])
  */
 static char strformat(char *s)
 {
-        char*		t;
-        int		c;
-        char*		b;
-        char*		p;
+	char*		t;
+	int		c;
+	char*		b;
+	char*		p;
 #if SHOPT_MULTIBYTE && defined(FMT_EXP_WIDE)
 	int		w;
 #endif
-        b = t = s;
-        for (;;)
-        {
-                switch (c = *s++)
-                {
-                    case '\\':
+	b = t = s;
+	for (;;)
+	{
+		switch (c = *s++)
+		{
+		    case '\\':
 			if(*s==0)
 				break;
 #if SHOPT_MULTIBYTE && defined(FMT_EXP_WIDE)
-                        c = chrexp(s - 1, &p, &w, FMT_EXP_CHAR|FMT_EXP_LINE|FMT_EXP_WIDE);
+			c = chrexp(s - 1, &p, &w, FMT_EXP_CHAR|FMT_EXP_LINE|FMT_EXP_WIDE);
 #else
-                        c = chresc(s - 1, &p);
+			c = chresc(s - 1, &p);
 #endif
-                        s = p;
+			s = p;
 #if SHOPT_MULTIBYTE
 #if defined(FMT_EXP_WIDE)
 			if(w)
@@ -512,13 +512,13 @@ static char strformat(char *s)
 				*t++ = '%';
 				c = 'Z';
 			}
-                        break;
-                    case 0:
-                        *t = 0;
-                        return t - b;
-                }
-                *t++ = c;
-        }
+			break;
+		    case 0:
+			*t = 0;
+			return t - b;
+		}
+		*t++ = c;
+	}
 }
 
 static char *genformat(char *format)
@@ -647,7 +647,7 @@ static ssize_t fmtbase64(Sfio_t *iop, char *string, int alt)
 			else
 			{
 				size =  sizeof(short);
-				number.i = (int)d; 
+				number.i = (int)d;
 			}
 		}
 		return sfwrite(iop, &number, size);
@@ -661,7 +661,7 @@ static ssize_t fmtbase64(Sfio_t *iop, char *string, int alt)
 				break;
 		}
 		if(fp)
-			return (*fp->disc->writef)(np, iop, 0, fp); 		
+			return (*fp->disc->writef)(np, iop, 0, fp);
 		else
 		{
 			int n = nv_size(np);
@@ -800,7 +800,7 @@ static int extend(Sfio_t* sp, void* v, Sffmt_t* fe)
 		case 'E':
 		case 'F':
 		case 'G':
-                        if(SFFMT_LDOUBLE)
+			if(SFFMT_LDOUBLE)
 				value->ld = 0.;
 			else
 				value->d = 0.;
@@ -996,7 +996,7 @@ static int extend(Sfio_t* sp, void* v, Sffmt_t* fe)
 					d = sh_strnum(argp,&lastchar,0);
 				break;
 			}
-                        if(SFFMT_LDOUBLE)
+			if(SFFMT_LDOUBLE)
 			{
 				value->ld = d;
 				fe->size = sizeof(value->ld);

src/cmd/ksh93/bltins/read.c

@@ -50,13 +50,13 @@
 
 struct read_save
 {
-        char		**argv;
+	char		**argv;
 	char		*prompt;
-        int		fd;
-        int		plen;
+	int		fd;
+	int		plen;
 	int		flags;
 	ssize_t		len;
-        Sflong_t	timeout;
+	Sflong_t	timeout;
 };
 
 int	b_read(int argc,char *argv[], Shbltin_t *context)