misc: Sync DoubleSegfault test to current behavior of Xorg

This commit in xserver 9c72887939f319e185d2726d9d9a4191b9d12efd changed
the behavior of crashing server from exit(1) to abort(). Adjust the test
accordingly.
3 jobs for fix-double-segfault-test in 1 minute and 42 seconds
Status Job ID Name Coverage
  Prep
passed #7144448
container-prep

00:00:13

 
  Install Xserver
passed #7144449
xserver-build

00:01:08

 
  Build
passed #7144450
build

00:00:19