mcelog in daemon mode can't log to just syslog

Issue

• The version of mcelog shipped in RHEL6 automatically enables logging to /var/log/mcelog when run as a daemon, and provides no clean way to disable that and log only to syslog.
• Our log monitoring/management infrastructure requires all logs be routed through syslog. There is a proposed patch to fix this problem:

https://github.com/bldewolf/mcelog/commit/c3c85d0efc01d8d44244e72a7bfbdbc26796e447