Perm issues in sqlite databases show up in slightly different ways
    
    SQLite databases may return SEC_ERROR_READ_ONLY instead of
    SEC_ERROR_BAD_DATABASE.
    
    If a database is opened as read-write but it fails (e.g. in a
    read-only directory) it will try again to open it as read-only
    and potentially fail because it doesn't exist at all. This sets
    errno as ENOENT rather than the expected EACCES so treat that
    as a read failure as well.
    
    Related: https://pagure.io/certmonger/issue/88