K 10
svn:author
V 6
jilles
K 8
svn:date
V 27
2011-05-30T21:41:06.436179Z
K 7
svn:log
V 392
posix_spawn(): Do not fail when trying to close an fd that is not open.

As noted in Austin Group issue #370 (an interpretation has been issued),
failing posix_spawn() because an fd specified with
posix_spawn_file_actions_addclose() is not open is unnecessarily harsh, and
there are existing implementations that do not fail posix_spawn() for this
reason.

Reviewed by:	ed
MFC after:	10 days

END