K 10
svn:author
V 3
mjg
K 8
svn:date
V 27
2013-04-14T17:08:34.563854Z
K 7
svn:log
V 162
Add fdallocn function and use it when passing fds over unix socket.

This gets rid of "unp_externalize fdalloc failed" panic.

Reviewed by:	pjd
MFC after:	1 week

END