Bug 19506

	Do the initial system install.  As part of that install, it
	will ask if you are a USA resident.  In my case, I am.  Answer
	'yes' (or whatever appropriate).  At the end of the install,
	/etc/make.conf will correctly have USA_RESIDENT=YES as the
	only line in it.  So far so good.

	Now, after the install, run /stand/sysinstall again to do something.
	In my case, I wanted to fdisk and partition a second disk.  I did
	this by starting a "standard install", just because I knew that
	would do the steps I wanted.  After doing the fdisk and partition
	steps, I exitted that install process.  At no time had I been asked
	if I was a US resident, because I hadn't really installed anything.

	After exitting /stand/sysinstall, the first line of /etc/make.conf
	had been changed to 'USA_RESIDENT=NO'.  This proved confusing when
	I later went to build a newer snapshot of openssh/rsaref.

Fix: 

I have not investigated any fix as of this time.
How-To-Repeat: 
	See above.  I have not checked to see what other paths in
	/stand/sysinstall might cause this line to be rewritten.