K 10
svn:author
V 5
trasz
K 8
svn:date
V 27
2020-10-01T18:45:31.027847Z
K 7
svn:log
V 180
Only clear TDP_NERRNO when needed, ie when it's previously been set.

Reviewed by:	kib
Tested by:	pho
Sponsored by:	DARPA
Differential Revision:	https://reviews.freebsd.org/D26612

END