[gdm] Non-fast-forward update to branch wip/reap-greeter-on-login

[Ray Strode <halfline src gnome org>]

The branch 'wip/reap-greeter-on-login' was changed in a way that was not a fast-forward update.
NOTE: This may cause problems for people pulling from the branch. For more information,
please see:

 https://wiki.gnome.org/Git/Help/NonFastForward

Commits removed from the branch:

  a8351ba... daemon: kill and restart greeter on demand under wayland

Commits added to the branch:

  89ed2f9... daemon: kill and restart greeter on demand under wayland