Command:
  set-server-log-level, Set the log level of the server logger.

Description:
  Requires server-admin privileges.
  Sets the log level of the server logger to one of 'debug', 'info',
  'warn', 'error', or 'fatal'. This will affect the amount of output
  written to the server log file.

Usage:
  xadm [global-options] set-server-log-level level [options]

Arguments:
  level: The log level to set, one of "debug", "info", "warn", "error", "fatal"

Options:
  -e, --extended    Include more status information about the server, including the current
                    GEM_PATH, $LOAD_PATH, current object locks, and existing threads.

  -h, --help    Show this message