grammars/source.rascal.json in github-linguist-7.0.0 vs grammars/source.rascal.json in github-linguist-7.1.0

@@ -67,9 +67,10 @@
     },
     "regex": {
       "patterns": [
         {
           "name": "string.regexp.rascal",
+          "begin": "/(?!/|\\*)",
           "end": "/([dims]*)",
           "patterns": [
             {
               "include": "#regex_escape"
             },