Initial debug of client - Need command line help

[Mark Eichin]

> gdb is supposed to be able to catch a child just after it forks but a
> few months ago that didn't work.  Perhaps it does now.

follow-fork-mode is documented as only working on HP/UX 11.x...

(sigh.  fond memories of the Domain/OS debugger, were you could 
"set prop fork both" [or something close to that] and at fork time, it
would split the window into parent and child debuggers...)