Zabbix

...G...... [ZBX-18195] changed Agent 2 log level increase/decrease command to match Agent 1

* commit 'b1de064d19d0b9bcd8929a5779eea22a62406c35':
  ...G...... [ZBX-18195] added change log
  ...G...... [ZBX-18195] split up log level increase and decrease functions
  ...G...... [ZBX-18195] added error on muliple run time commands at the same time for agent 2
  ...G...... [ZBX-18195] changed Agent 2 -R log level increase/decrease cmds to match Agent 1

(cherry picked from commit 1e0b1f5b27b005e3fb95472aa8572f422fced0ee)