There are some messages that you do not want to see in the logs file. In this case I had the following:
Nov 16 14:15:51 nbefa1 nrpe[25429]: Error: Could not complete SSL handshake. 1
Nov 16 14:15:51 nbefa1 nrpe[25431]: Error: Could not complete SSL handshake. 1
Nov 16 14:15:51 nbefa1 nrpe[25435]: Error: Could not complete SSL handshake. 1
Nov 16 14:15:51 nbefa1 nrpe[25437]: Error: Could not complete SSL handshake. 1
Nov 16 14:15:55 nbefa1 nrpe[25446]: Error: Could not complete SSL handshake. 1
Nov 16 14:15:55 nbefa1 nrpe[25448]: Error: Could not complete SSL handshake. 1
To get rid of those unwanted messages add the following to the top of /etc/rsyslogd.conf file:
# Discarding unwanted messages
:msg, contains, "Error: Could not complete SSL handshake. 1" ~
And then restart rsyslogd.
More information: http://www.rsyslog.com/discarding-unwanted-messages/