x11-wm/gamescope: unbreak fetch

fetch: https://github.com/Plagman/gamescope/commit/d59836199ebe.patch: size mismatch: expected 2586, actual 2588

-index 01a4c79..abac660 100644
+index 01a4c793..abac6603 100644

(cherry picked from commit f92407c62025d8facd2b8093fdaf7257ce86eb95)