Unix: Remove removed option from help

  fprintf(stderr,

    "\n"

    "Options: \n"

    "  -b                   Run bird in background\n"

    "  -c <config-file>     Use given configuration file instead\n"

    "                       of prefix/etc/bird.conf\n"

    "  -c <config-file>     Use given configuration file instead of\n"

    "                       "  PATH_CONFIG_FILE "\n"

    "  -d                   Enable debug messages and run bird in foreground\n"

    "  -D <debug-file>      Log debug messages to given file instead of stderr\n"

    "  -f                   Run bird in foreground\n"

    "  -g <group>           Use given group ID\n"

    "  -h, --help           Display this information\n"

    "  -l                   Look for a configuration file and a communication socket\n"

    "                       file in the current working directory\n"

    "  -l                   Look for a configuration file and a control socket\n"

    "                       in the current working directory\n"

    "  -p                   Test configuration file and exit without start\n"

    "  -P <pid-file>        Create a PID file with given filename\n"

    "  -R                   Apply graceful restart recovery after start\n"