Merge pull request #225 from Automattic/fix/xml-brush

Fix XML brush: use the last occurrence of the tag

Author: merkushin

syntaxhighlighter3/scripts/shBrushXml.js

@@ -48,7 +48,7 @@
 
 			if (tag != null)
 				result.push(
-					new constructor(tag.name, match.index + tag[0].indexOf(tag.name), 'keyword')
+					new constructor(tag.name, match.index + tag[0].lastIndexOf(tag.name), 'keyword')
 				);
 
 			return result;