grammar: try to detect regex values to avoid weird highlighting

CHANGELOG.md

@@ -1,5 +1,11 @@
 # Changelog
 
+## 1.1.2 (February 21, 2018)
+
+IMPROVEMENTS:
+
+- Detection of regex values (although not an official data type) to avoid weird highlighting
+
 ## 1.1.1 (November 25, 2017)
 
 IMPROVEMENTS:

grammars/fluentd.cson

@@ -138,6 +138,10 @@ repository:
           {include: 'source.json'}
         ]
       }
+      {
+        match: '\/.+\/$'
+        name: 'value.string.regex.fluentd'
+      }
       {
         match: '\\b(\\d+)\\b'
         name: 'value.constant.integer.fluentd'