K 10
svn:author
V 2
se
K 8
svn:date
V 27
2020-11-03T11:37:19.175086Z
K 7
svn:log
V 210
Check that #ifdef, #ifndef, and #undef are used with a single name

This restores the parameter validation that has been peformed by cpp
for defining and testing of names used in conditions.

MFC after:	3 days

END