K 10
svn:author
V 3
dim
K 8
svn:date
V 27
2015-08-09T10:00:13.925911Z
K 7
svn:log
V 170
In libm's exp2(3), avoid left-shifting a negative integer, which is
undefined.  Replace it with the intended value, in a defined way.

Reviewed by:	bde
MFC after:	3 days

END