[gnome-session] (5 commits) Non-fast-forward update to branch benzea/avoid-systemd-autostart

[Benjamin Berg <bberg src gnome org>]

The branch 'benzea/avoid-systemd-autostart' 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:

  fc06e30... util: Never try to autostart systemd

Commits added to the branch:

  fe22c4e... util: Only accept common space characters (*)
  a24600d... util: Log variables excluded from environment upload (*)
  33bc7b8... main: Use already defined error from main function. (*)
  b6d98eb... main: Warn about failures to update the environment (*)
  87d92fe... util: Never try to autostart systemd

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