[glib] (4 commits) Non-fast-forward update to branch th/gspawn-no-safe-close

[Thomas Haller <thaller src gnome org>]

The branch 'th/gspawn-no-safe-close' 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:

  da6774f... gspawn: avoid race due to retry with EINTR on close()

Commits added to the branch:

  8a25bdb... gstdio: fail assertion in g_close() for invalid file descri (*)
  152995a... gutilsprivate: add safe_close() and safe_close_with_error()
  2b1b421... gstdio: use safe_close_with_error() from g_close()
  afa66d5... gspawn: avoid race due to retry with EINTR on close()

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