crontab /usr/sbin/rtc log rc=1

I noticed in my cron log file for my solaris 8 servers the rc=1. I imagine that is return code and something did not process. Does anyone know what that is, is there fix or the implications of leaving it?

Thank you

> CMD: [ -x /usr/sbin/rtc ] && /usr/sbin/rtc -c > /dev/null 2>&1
> root 22049 c Fri Dec 19 02:01:00 2008
< root 22049 c Fri Dec 19 02:01:00 2008 rc=1

Sounds correct. Looks like the process tried to start, but either /usr/sbin/rtc was not executable, or the program returned 1. If it happens enough, I'd invvestigate why rtc is exiting with a non-zero status.