FIX: match the expected answer to actual result.

As part of a4c504c the modified was
changed from SuperModifer to MetaModifier.  Under the new scheme of testing
the keys we were correctly noting that SuperModifier is not in the Qt Modifier
enum (the super keys come in through "SpecialKeys").  However, because the
failures were happening in a callback and being ignored, we did not notice this
change.  It is likely that this test never worked for the same reason.

Author: tacaswell

lib/matplotlib/tests/test_backend_qt.py

@@ -106,7 +106,7 @@ def CustomHandler(signum, frame):
         ('Key_Control', ['AltModifier'], 'alt+control'),
         ('Key_Alt', ['ControlModifier'], 'ctrl+alt'),
         ('Key_Aacute', ['ControlModifier', 'AltModifier', 'MetaModifier'],
-         'ctrl+alt+super+\N{LATIN SMALL LETTER A WITH ACUTE}'),
+         'ctrl+alt+meta+\N{LATIN SMALL LETTER A WITH ACUTE}'),
         # We do not currently map the media keys, this may change in the
         # future.  This means the callback will never fire
         ('Key_Play', [], None),