[monitoring-plugins] Merge remote-tracking branch ...

[Holger Weiss]

 Module: monitoring-plugins
 Branch: master
 Commit: 2f80d55b8ed0c539a9141895a226c5fec4ff4c4d
 Author: Holger Weiss <holger at zedat.fu-berlin.de>
   Date: Sun Oct  3 13:37:12 2021 +0200
    URL: https://www.monitoring-plugins.org/repositories/monitoring-plugins/commit/?id=2f80d55

Merge remote-tracking branch 'monitoring-plugins/pr/1707'

* monitoring-plugins/pr/1707:
  Revert to poor man's logic
  Change all to comments to old comment style
  Fix comparing logic
  Remove spaces from tests
  check_swap: Fix perfdata und thresholds for big values and simplify code
  Introduce new perfdata functions and stuff for using (u)int64_t

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