Overview of changes in GLib 2.70.3
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* Several important fixes to FD handling in gspawn (#2503, #2506, #2580)

* Several important fixes to GDBus message and GVariant parsing of invalid data (#2557, #2572)

* Fix potential data loss due to missing fsync when saving files on btrfs (!2437)

* Bugs fixed:
 - #2503 gspawn.c may clobber target fds
 - #2506 gspawn.c fails to close child_err_report_fd if it is duped to avoid conflation with one of the target_fds
 - #2557 Arrays of zero-element tuples with non-zero length lead to infinite loops in g_dbus_message_new_from_blob
 - #2572 Check for GVariant recursion depth before recursing
 - #2580 gspawn doesn't set CLOEXEC if close_range fails unexpectedly
 - !2394 Backport !1968 “gspawn: Fix file descriptor conflation issues” to glib-2-70
 - !2415 Backport !2412 “paramspec: fix unref annotation” to glib-2-70
 - !2437 Backport !2425 “gfileutils: Remove outdated BTRFS fsync optimization from set_contents” to glib-2-70
 - !2444 Backport !2435 “gspawn: Report errors with closing file descriptors between fork/exec” to glib-2-70
 - !2455 Backport !2454 gdbusmessage and gvariant fixes to glib-2-70

* Translation updates:
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