MFC r273127:

MFC r273127:

Make automountd(8) inform autofs(4) whether directory being handled can
have wildcards.  This makes it possible for autofs(4) to avoid requesting
automountd(8) action on access to nonexistent nodes - unless wildcards
are actually used.

Note that this change breaks ABI for automountd(8).

MFC r278521:

Restore ABI compatibility, broken in r273127.  Note that while this fixes
ABI with 10.1, it breaks ABI for 11-CURRENT, so rebuild of automountd(8)
is neccessary.

Sponsored by:	The FreeBSD Foundation

git-svn-id: svn://svn.freebsd.org/base/stable/10@279741 ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f