[glib] (2 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:

  b1bb324... gspawn: Implement fd remapping for posix_spawn codepath
  fd6f7f4... gsubprocess: ensure we test fd remapping on the posix_spawn

Commits added to the branch:

  a1a9449... gspawn: Implement fd remapping for posix_spawn codepath
  f08a58b... gsubprocess: ensure we test fd remapping on the posix_spawn