Log Message:
-----------
Fix erroneous error tests in pow/exp.
Modified Files:
--------------
pgsql/src/backend/utils/adt:
float.c (r1.137 -> r1.138)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/utils/adt/float.c.diff?r1=1.137&r2=1.138)