Log Message:
-----------
Remove some unnecessary code: since ExecMakeFunctionResultNoSets does not
want to handle set inputs, it should just pass NULL for isDone, not make
its own failure check.
Modified Files:
--------------
pgsql/src/backend/executor:
execQual.c (r1.178 -> r1.179)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/executor/execQual.c.diff?r1=1.178&r2=1.179)