Merge pull request #1611 from linchiwei123/patch-1

update docstring of ResponseStreamMixin class

src/werkzeug/wrappers/response.py

@@ -51,7 +51,7 @@ def encoding(self):
 
 
 class ResponseStreamMixin(object):
-    """Mixin for :class:`BaseRequest` subclasses.  Classes that inherit from
+    """Mixin for :class:`BaseResponse` subclasses.  Classes that inherit from
     this mixin will automatically get a :attr:`stream` property that provides
     a write-only interface to the response iterable.
     """