fix: xml.tmLanguage.json config

org.eclipse.tm4e.language_pack/_update/README.md

@@ -8,3 +8,4 @@ Do not edit the files of the project directly. If required, adapt the update/rec
 Ensure that the manual changes in the following files are not overwritten:
 1. [../plugin.xml](../plugin.xml): `markdown-math` stays disabled in  until https://github.com/microsoft/vscode/issues/181662 is solved
 1. [../javascript/Regular Expressions (JavaScript).tmLanguage](../javascript/Regular%20Expressions%20%28JavaScript%29.tmLanguage): `scopeName` is changed to `lngpck.source.js.regexp`
+1. [../xml/xml.tmLanguage.json](xml/xml.tmLanguage.json): syntax fixes, see https://github.com/microsoft/vscode/issues/184852 and https://github.com/atom/language-xml/issues/96

org.eclipse.tm4e.language_pack/xml/xml.tmLanguage.json

@@ -356,10 +356,10 @@
 					"captures": {
 						"0": {
 							"name": "punctuation.definition.comment.xml"
-						},
-						"end": "--%>",
-						"name": "comment.block.xml"
-					}
+						}
+					},
+					"end": "--%>",
+					"name": "comment.block.xml"
 				},
 				{
 					"begin": "<!--",
@@ -372,7 +372,7 @@
 					"name": "comment.block.xml",
 					"patterns": [
 						{
-							"begin": "--(?!>)",
+							"match": "--(?!>)",
 							"captures": {
 								"0": {
 									"name": "invalid.illegal.bad-comments-or-CDATA.xml"