[glib/glib-2-58] (16 commits) ...Merge CVE-2021-27218, CVE-2021-27219 and CVE-2021-28153 fixes into glib-2-58

[Simon McVittie <smcv src gnome org>]

Summary of changes:

  24b9446... gstrfuncs: Add internal g_memdup2() function (*)
  0ace82d... glib: Use g_memdup2() instead of g_memdup() in obvious plac (*)
  3e0bb3b... ghash: Use g_memdup2() instead of g_memdup() (*)
  c921c82... gobject: Use g_memdup2() instead of g_memdup() in obvious p (*)
  2424eea... gio: Use g_memdup2() instead of g_memdup() in obvious place (*)
  1ad8c5b... gbytearray: Do not accept too large byte arrays (*)
  1436fed... gvariant test: Use g_memdup2 (*)
  5c26b6a... gwinhttpfile: Avoid arithmetic overflow when calculating a  (*)
  7f308de... gwin32: Use gsize internally in g_wcsdup() (*)
  84d7b85... glocalfileoutputstream: Fix a typo in a comment (*)
  4202050... tests: Stop using g_test_bug_base() in file tests (*)
  b38fca2... glocalfileoutputstream: Factor out a flag check (*)
  4e64a27... glocalfileoutputstream: Fix CREATE_REPLACE_DESTINATION with (*)
  7bfe2dc... glocalfileoutputstream: Add a missing O_CLOEXEC flag to rep (*)
  af39d83... glocalfileoutputstream: Tidy up error handling (*)
  d80d9af... Merge CVE-2021-27218, CVE-2021-27219 and CVE-2021-28153 fix

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