[glib] (10 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:

  3c2d0f3... gspawn: use close_and_invalidate more
  167fe32... gspawn: Improve error message when dup fails
  f578640... gspawn: fix hangs when duping child_err_report_fd
  88da118... gspawn: fix fd remapping conflation issue
  c911658... gspawn: Implement fd remapping for posix_spawn codepath
  9f73f8a... gsubprocess: ensure we test fd remapping on the posix_spawn
  71f3841... gspawn: Check from errors from safe_dup2() and dupfd_cloexe
  2f28280... gspawn: add new error message for open() failures
  a5ccf63... Add tests for GSubprocess fd conflation issues
  b8d9995... Add test for child_err_report_fd conflation with target fds

Commits added to the branch:

  ac8d1aa... gspawn: use close_and_invalidate more
  33f15d9... gspawn: Improve error message when dup fails
  e2700c7... gspawn: fix hangs when duping child_err_report_fd
  a1abd8f... gspawn: fix fd remapping conflation issue
  0330e30... gspawn: Implement fd remapping for posix_spawn codepath
  fd61aa0... gsubprocess: ensure we test fd remapping on the posix_spawn
  bd0405a... gspawn: Check from errors from safe_dup2() and dupfd_cloexe
  954884c... gspawn: add new error message for open() failures
  46df766... Add tests for GSubprocess fd conflation issues
  c0deaa3... Add test for child_err_report_fd conflation with target fds