[mutter] (5 commits) Non-fast-forward update to branch wip/lantw/fix-warnings-reported-by-shellcheck

[Georges Basile Stavracas Neto <gbsneto src gnome org>]

The branch 'wip/lantw/fix-warnings-reported-by-shellcheck' 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:

  4f98d8d... tests: Fix warnings reported by shellcheck

Commits added to the branch:

  f8cd1e5... wayland: Make DnD role inherit from MetaWaylandActorSurface (*)
  88f8228... wayland: Fix DnD actor set up (*)
  365ea2f... build: Don't check for Xwayland when Wayland is disabled (*)
  b2e75b5... build: Don't hardcode the path of bash (*)
  319500e... tests: Fix warnings reported by shellcheck

(*) This commit already existed in another branch; no separate mail sent