Merge pull request flask-restful#451 from ZhangBohan/patch-1

Update reqparse.rst

docs/reqparse.rst

@@ -178,7 +178,7 @@ The application configuration key is "BUNDLE_ERRORS". For example ::
     from flask import Flask
 
     app = Flask(__name__)
-    app.config['BUNDLE_ERRRORS] = True
+    app.config['BUNDLE_ERRRORS'] = True
 
 Note: If ``BUNDLE_ERRORS`` is set on the application, setting ``bundle_errors``
 to ``False`` in the RequestParser keyword argument will not work.