K 10
svn:author
V 3
dim
K 8
svn:date
V 27
2015-08-12T19:06:35.901571Z
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svn:log
V 166
MFC r286515:

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

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