English fixup, from Mike MacCana on docs@
diff --git a/Doc/library/urllib.rst b/Doc/library/urllib.rst
index 503760b..82f1bda 100644
--- a/Doc/library/urllib.rst
+++ b/Doc/library/urllib.rst
@@ -23,7 +23,7 @@
 instead of filenames.  Some restrictions apply --- it can only open URLs for
 reading, and no seek operations are available.
 
-.. warning:: When opening HTTPS URLs, it is not attempted to validate the
+.. warning:: When opening HTTPS URLs, it does not attempt to validate the
    server certificate.  Use at your own risk!