Just a sanity check before I sumbit a buig report

[Pete French]

> getrusage(2) says that ru_ixrss is based on "statistics clock ticks"
> with a frequency of sysconf(_SC_CLK_TCK). This cannot be right.

Hmmmm... it was trying to interpret the results from getrusage which lead
me to finding the bug. I notice that /usr/bin/time does a sysctl to get
the clock rate in order to interpret the return values from getrusage.

-pcf.