fix whitespace nit.
diff --git a/Doc/library/urllib.request.rst b/Doc/library/urllib.request.rst
index acb6888..7dfdf3e 100644
--- a/Doc/library/urllib.request.rst
+++ b/Doc/library/urllib.request.rst
@@ -935,8 +935,8 @@
 
 .. method:: HTTPErrorProcessor.https_response()
 
-   Process HTTPS error responses. 
-   
+   Process HTTPS error responses.
+
    The behavior is same as :meth:`http_response`.