add back x11 window focusing
add back x11 window focusing

somehow during a cherry-pick of 96b55ce441d68c7a23a15a344c850d92a35af544,
this line was removed. no conflicts were raised during the cherry-pick.

thanksgit.jpg

fix T3137

rvandegrift/e,rvandegrift/e,rvandegrift/e