journald: make it clear that dev_kmsg_record modifies the string passed to it
    
    The function replaces a couple commas, a semicolon and the final newline with
    zero bytes in the string passed to it. The 'const' seems to have been added
    by accident during a bulk edit (more specifically 3b3154df7e2773332bb814).
    
    (cherry picked from commit 1e0c5fc2a76e4f3d508331f410899c50493e1fc9)
    
    Resolves: #1696224
    
    patch_name: 0141-journald-make-it-clear-that-dev_kmsg_record-modifies.patch
    present_in_specfile: true
    location_in_specfile: 141
    squash_commits: true