Add support for opening files for appending
Addresses part of #8983
(cherry picked from commit 566b7d23eb747e9c5a74e5647693077b52395fc5)
Resolves: #1809175
patch_name: 0373-Add-support-for-opening-files-for-appending.patch
present_in_specfile: true
location_in_specfile: 373
squash_commits: true