regex Informative log message fills the log window

[dilmash]

The message {node.id}: process list using regex ... in module iobroker.js line 987 often appears unnecessarily in the IOBroker log window. This message could perhaps be changed to:

adapter.log.debug(`${node.id}: process list using regex ${regex.toString()}`) 

so that it is only issued when "debug" log level is selected

[Apollon77]

PRs welcome :-)