Remove trailing regexp from .js files.

src/messages.js

Index: src/messages.js
diff --git a/src/messages.js b/src/messages.js
index b8a1070d59fd1dc59fe35184350a38c43e2d4226..7ef6c7369ee11104d1b90363f2b15b7112c819dc 100644
--- a/src/messages.js
+++ b/src/messages.js
@@ -743,7 +743,7 @@ function FormatEvalOrigin(script) {
   } else {
     eval_origin +=  "<anonymous>";
   }
-  
+
   var eval_from_script = script.eval_from_script;
   if (eval_from_script) {
     if (eval_from_script.compilation_type == COMPILATION_TYPE_EVAL) {
@@ -764,7 +764,7 @@ function FormatEvalOrigin(script) {
       }
     }
   }
-  
+
   return eval_origin;
 };