Implemented more common check_mk agent sections#4

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jens-maus wants to merge 12 commits intoalexreinert:masterfrom jens-maus:master

+81-8

Commits on Oct 22, 2018

Commits on Jan 21, 2019

implemented additional chrony NTP daemon check because upcoming RaspberryMatic
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changed waitmax to use the coreutils timeout command instead which
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committed

Commits on Jan 22, 2019

introduced a wrapper script to either directly call an existing
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Commits on Jun 18, 2019

fixed "timeout" wrapper script to correctly replicate the BusyBox
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committed

Commits on Jun 28, 2019

removed excessive syslog output uses to stop flooding with just
jens-maus
committed