how to avoid logging IP addresses completely?

[Christoph via Unbound-users]

Hi,

we would like to avoid logging sensitive information like qnames and IPs 
(verbosity is set to 0) but we still get log entries like these in our logs:

error: udp connect failed: Invalid argument for ::ffff:x.x.x.x port 53
error: read (in tcp s): Bad file descriptor for x.x.x.x port 53
error: read (in tcp s): Connection reset by peer for x.x.x.x port 53

is there a way to disable them or get IPs redacted without disabling 
logging completely?

thanks,
Christoph