[vz-dev] [volkszaehler/vzlogger] 037ab6: fix: meterexec remove wrong errno (#506)

[Matthias Behr]

  Branch: refs/heads/master
  Home:   https://github.com/volkszaehler/vzlogger
  Commit: 037ab6b6a6c18f5603c718928c012867f8305d12
      https://github.com/volkszaehler/vzlogger/commit/037ab6b6a6c18f5603c718928c012867f8305d12
  Author: Matthias Behr <mbehr at mcbehr.de>
  Date:   2021-11-20 (Sat, 20 Nov 2021)

  Changed paths:
    M CMakeLists.txt
    M src/protocols/MeterExec.cpp

  Log Message:
  -----------
  fix: meterexec remove wrong errno (#506)

Removed wrong errno output reported in #504.
Added a log_warning on failing execution to ease debugging/analysis.

Issue: #504