Fix code example to have valid syntax so that it can be highlighted.
diff --git a/Doc/library/_winreg.rst b/Doc/library/_winreg.rst
index 01a8f37..67c4c6b 100644
--- a/Doc/library/_winreg.rst
+++ b/Doc/library/_winreg.rst
@@ -554,7 +554,7 @@
    :keyword:`with` statement::
 
       with OpenKey(HKEY_LOCAL_MACHINE, "foo") as key:
-          # ... work with key ...
+          ...  # work with key
 
    will automatically close *key* when control leaves the :keyword:`with` block.