Fixed patterns which can match the empty string (#1775)

This changes patterns which match the empty string to always match at least one character.

components/prism-fsharp.js

@@ -59,7 +59,7 @@ Prism.languages.insertBefore('fsharp', 'string', {
 				lookbehind: true
 			},
 			'annotation-content': {
-				pattern: /[\s\S]*/,
+				pattern: /[\s\S]+/,
 				inside: Prism.languages.fsharp
 			}
 		}

components/prism-hpkp.js

@@ -5,7 +5,7 @@
  */
 
 Prism.languages.hpkp = {
-	'directive':  {
+	'directive': {
 		pattern: /\b(?:(?:includeSubDomains|preload|strict)(?: |;)|pin-sha256="[a-zA-Z\d+=/]+"|(?:max-age|report-uri)=|report-to )/,
 		alias: 'keyword'
 	},
@@ -14,7 +14,7 @@ Prism.languages.hpkp = {
 		alias: 'selector'
 	},
 	'unsafe': {
-		pattern: /\d{0,6}/,
+		pattern: /\d{1,6}/,
 		alias: 'function'
 	}
-};
+};

components/prism-hsts.js

@@ -5,7 +5,7 @@
  */
 
 Prism.languages.hsts = {
-	'directive':  {
+	'directive': {
 		pattern: /\b(?:max-age=|includeSubDomains|preload)/,
 		alias: 'keyword'
 	},
@@ -14,7 +14,7 @@ Prism.languages.hsts = {
 		alias: 'selector'
 	},
 	'unsafe': {
-		pattern: /\d{0,7}/,
+		pattern: /\d{1,7}/,
 		alias: 'function'
 	}
-};
+};

components/prism-twig.js

@@ -13,7 +13,7 @@ Prism.languages.twig = {
 			'rd': {
 				pattern: /-?(?:%\}|\}\})$/,
 				inside: {
-					'punctuation': /.*/
+					'punctuation': /.+/
 				}
 			},
 			'string': {