kern/50295: clock_nanosleep(2) sets errno instead of returning error

[christos%NetBSD.org@localhost]

>Number:         50295
>Category:       kern
>Synopsis:       clock_nanosleep(2) sets errno instead of returning error
>Confidential:   no
>Severity:       serious
>Priority:       low
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Fri Oct 02 18:40:00 +0000 2015
>Originator:     Christos Zoulas
>Release:        NetBSD 7.99.21
>Organization:
	Entropy Unlimited
>Environment:
System: NetBSD mb1.astron.com 7.99.21 NetBSD 7.99.21 (GENERIC) #47: Fri Oct 2 12:47:28 EDT 2015 christos%mb1.astron.com@localhost:/usr/src/sys/arch/amd64/compile/GENERIC amd64
Architecture: x86_64
Machine: amd64
>Description:
	check our man page, our code and the ToG man page.
>How-To-Repeat:
>Fix: