Resync _XcursorThemeInherits with libXcursor

Alan Coopersmith requested to merge alanc/libxcb-cursor:XcTI-resync into master

_XcursorThemeInherits was originally copied from libXcursor. This MR resyncs with the current version, bringing in the changes to _XcursorThemeInherits from libxcursor@897213f3 & libxcursor@f807ac9c.

diff -uw shows no difference between the two copies after these changes are applied.

Reported-by: @ithinkapps in issue #11 (closed)

Merge request reports