MFC r249488:

Similarly to proc_getargv() and proc_getenvv(), export proc_getauxv()
to be able to reuse the code.


git-svn-id: svn://svn.freebsd.org/base/stable/9@250416 ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f
MFC r250116:

Make an attempt to detect missing MTREE files in distrib-dirs.  Not
perfect, but this is just a developer seatbelt

PR:		conf/176897
Submitted by:	Garrett Cooper <yaneurabeya@gmail.com>


git-svn-id: svn://svn.freebsd.org/base/stable/9@250417 ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f
Merge remote-tracking branch 'upstream/svn_stable_9' into svn_stable_9