Initialize procsig0.ps_refcnt to 1 (instead of 2), this would silence complaints about ps_refcnt greater than two when we try to fork() a kthread from proc0 with RFSIGSHARE flag set.
Initialize procsig0.ps_refcnt to 1 (instead of 2), this would silence
complaints about ps_refcnt greater than two when we try to fork() a
kthread from proc0 with RFSIGSHARE flag set.

Noticed by:	Tor Egge <tegge@fast.no>
Reviewed by:	Richard Seaman, Jr. <dick@tar.com>

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