reload-minions:
  cmd.run:
    - name: saltutil.refresh_modules

ends up with

----------
    State: - cmd
    Name:      saltutil.refresh_modules
    Function:  run
        Result:    False
        Comment:   Command "saltutil.refresh_modules" run
        Changes:   pid: 10575
                   retcode: 127
                   stderr: /bin/bash: saltutil.refresh_modules: command not found
                   stdout: