delphij 7a46967222 random(4): Squash non-error timeout codes from tsleep(9).
In both scenarios a timeout (EWOULDBLOCK) is considered as a
normal condition and the error should not pop up to upper layers.

PR:		231181
Submitted by:	cem
Reported by:	lev
Reviewed by:	vangyzen, markm, delphij
Approved by:	re (kib)
Approved by:	secteam (delphij)
Differential Revision:	https://reviews.freebsd.org/D17049
2018-09-09 17:12:31 +00:00
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