Leaking addresses/pubkeys/txids is a privacy leak...
but with lightning, logging should be enabled by default, as otherwise
issues would be sometimes impossible to debug...
Well, disable it for now.
old style "-v" still works
filtering examples:
-v=debug,network=error,interface=error // effectively blacklists network and interface
-v=warning,network=debug,interface=debug // effectively whitelists network and interface