Minor fix with unicode errors

Author: owais

webpack_loader/utils.py

@@ -80,7 +80,7 @@ def get_bundle(bundle_name, config):
     elif assets.get('status') == 'error':
         if 'file' not in assets:
             assets['file'] = ''
-        error = """
+        error = u"""
         {error} in {file}
         {message}
         """.format(**assets)