fail2ban/fail2ban — pull request #265 by yarikoptic (2013-06-21 16:47:14+00:00)
Title: Improve fail2ban-client errors logging/handling -- fail if no log file could be read, dump logs to stderr

we could come up with a setup to dump only <=ERROR level logs to stderr while the rest to stdout but I do not think it would provide much benefit. Dumping all logging to stderr would separate nicely between logging and normal client's output (e.g. for status command)