x11-fonts/fontconfig: Add further upstream patch for v2.13.92
- Add upstream patch to files/patch-2.13.92.diff file: https://cgit.freedesktop.org/fontconfig/commit/?id=6f6b39780215714386606ca1c5457a7106639ff4
- Fix pkg-message filename
PR: 245343
Submitted by: lightside <lightside@gmx.com>