Fix for the "ps" command performance degradation patch the was
introduced in crash-7.0.8.  Without this patch, it is possible that
the "ps" command may fail prematurely with the error message
"ps: bsearch for tgid failed: task: <address> tgid: <number>"
when running on a live system or against a "live" dumpfile.
(panfy.fnst@cn.fujitsu.com)