rz-test: Fix last line of diff when REGEXP_FILTER_OUT/_ERR is set

[kazarmy]

Your checklist for this pull request

• I've read the guidelines for contributing to this repository
• I made sure to follow the project's coding style
• I've documented or updated the documentation of every function and struct this PR changes. If not so I've explained why.
• I've added tests that prove my fix is effective or that my feature works (if possible)
• I've updated the rizin book with the relevant information (if needed)

Detailed description

This pr fixes the last line of the diff when REGEXP_FILTER_OUT/_ERR is set (example problem shown below) by adding a newline as appropriate.

The following changes to tests were used for testing:

diff --git a/test/db/archos/linux-x64/dbg_afvd b/test/db/archos/linux-x64/dbg_afvd
index 84a16a4c4e..7a19405eac 100644
--- a/test/db/archos/linux-x64/dbg_afvd
+++ b/test/db/archos/linux-x64/dbg_afvd
@@ -10,6 +10,7 @@ afvd var_ch
 EOF
 REGEXP_FILTER_OUT=('.'\s*)
 EXPECT=<<EOF
+'b'
 'a'
 EOF
 RUN
diff --git a/test/db/archos/linux-x64/dbg_dmh b/test/db/archos/linux-x64/dbg_dmh
index 5e46cfd6c8..eccc3c3c57 100644
--- a/test/db/archos/linux-x64/dbg_dmh
+++ b/test/db/archos/linux-x64/dbg_dmh
@@ -33,7 +33,7 @@ size=0xf160
 status=allocated
 size=0x11c10
 status=allocated
-size=0x20
+size=0x2
 status=free
 size=0xf140
 EOF
diff --git a/test/db/archos/linux-x64/dbg_oo b/test/db/archos/linux-x64/dbg_oo
index 9b2d83e4de..514368331d 100644
--- a/test/db/archos/linux-x64/dbg_oo
+++ b/test/db/archos/linux-x64/dbg_oo
@@ -114,7 +114,7 @@ ood
 EOF
 REGEXP_FILTER_ERR=(Process\swith\sPID)|(helloworld-gcc\sreopened\sin\sread-write\smode)
 EXPECT_ERR=<<EOF
-Process with PID
+Proce with PID
 helloworld-gcc reopened in read-write mode
 EOF
 RUN
diff --git a/test/db/archos/linux-x64/dbg_trace b/test/db/archos/linux-x64/dbg_trace
index 3f11dc724d..50848da7a3 100644
--- a/test/db/archos/linux-x64/dbg_trace
+++ b/test/db/archos/linux-x64/dbg_trace
@@ -71,5 +71,7 @@ main+8
 entry0+41
 EOF
 REGEXP_FILTER_ERR=ERROR.*\n
-EXPECT_ERR=
+EXPECT_ERR=<<EOF
+abc
+EOF
 RUN

Test plan

Manual testing is needed. All builds are green.

Closing issues

...