K 10
svn:author
V 5
markj
K 8
svn:date
V 27
2018-12-06T20:03:06.396634Z
K 7
svn:log
V 286
Add zdopen(3) to complement zopen(3).

zdopen() can be used in capability mode.  Update zopen.3 accordingly
and fix some grammar nits while I'm here.

Reviewed by:	delphij
MFC after:	2 weeks
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D18456

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