Resolves: #490027
    Summary: log module issues unnecessary/inaccurate syslog errors
    Description:
    1) don't log "Exceeded max number of logs allowed" in syslog messages.  It's an
    info level log, which is not appropriate to log in syslog messages.
    2) when deleting an error log file failed, a wrong file name (audit log) was
    printed.  I also added the error code and the message why the deletion failed.