K 10
svn:author
V 3
sjg
K 8
svn:date
V 27
2019-09-27T00:08:40.580784Z
K 7
svn:log
V 178
Use .undef per variable

Attempting to expand a variable to a list of vars to .undef
does not actually work.

MFC of r343066

Reviewed by:	bdrewery
Differential Revision:	D17251

END