coredump: fix message when we fail to save a journald coredump
    
    If creation of the message failed, we'd write a bogus entry:
    systemd-coredump[1400]: Cannot store coredump of 416 (systemd-journal): No space left on device
    systemd-coredump[1400]: MESSAGE=Process 416 (systemd-journal) of user 0 dumped core.
    systemd-coredump[1400]: Coredump diverted to
    
    (cherry-picked from commit f0136e09221364f931c3a3b715da4e4d3ee9f2ac)
    
    Related: #1664976
    
    patch_name: 0072-coredump-fix-message-when-we-fail-to-save-a-journald.patch
    present_in_specfile: true
    location_in_specfile: 72
    squash_commits: true