[mutter] (3 commits) Non-fast-forward update to branch session-try-sd-pid

[Iain Lane <iainl src gnome org>]

The branch 'session-try-sd-pid' 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:

  d969d00... launcher: First check if we are in a login session

Commits added to the branch:

  951fb03... build: Fix distcheck (*)
  90a68f3... Bump version to 3.29.3 (*)
  89162a9... launcher: First check if we are in a login session

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