[glib] (3 commits) Non-fast-forward update to branch mcatanzaro/posix-spawn2

[Michael Catanzaro <mcatanzaro src gnome org>]

The branch 'mcatanzaro/posix-spawn2' 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:

  31d8045... gspawn: Implement fd remapping for posix_spawn codepath
  c5bfe3e... gsubprocess: ensure we test fd remapping on the posix_spawn
  063c0bf... gspawn: Check from errors from safe_dup2() and dupfd_cloexe

Commits added to the branch:

  c07f09f... gspawn: Implement fd remapping for posix_spawn codepath
  329603d... gsubprocess: ensure we test fd remapping on the posix_spawn
  ef9ad4b... gspawn: Check from errors from safe_dup2() and dupfd_cloexe