add comma to the regex used to remove unwanted characters in formatFields

Author: cwensel

tessellate-main/src/main/java/io/clusterless/tessellate/pipeline/intrinsic/FormatFieldsIntrinsic.java

@@ -21,7 +21,7 @@
 public class FormatFieldsIntrinsic extends IntrinsicBuilder {
 
     public static final String FORMAT = "format";
-    public static final String REGEX = "[/\\\\ .-]";
+    public static final String REGEX = "[/\\\\ .,-]";
 
     public FormatFieldsIntrinsic() {
         super("formatFields", FORMAT);