pTools Process Signal utility (psig)

Based off the Sun Microsystems psig utility.  Displays information relating
to how the process handles signals.  For each signal the set of flags
for each, the action, and what processes are blocked while handling the
current signal.

Usage:
	psig pid ...

NOTES:
	Output format is derived from Sun Microsystems implementation after
	  reviewing thier psig implementation

	** Check return value from do_psig function in main() incase an error
	occurs

