Explicit NULL dereference (src/backend/utils/adt/ruleutils.c)

Hi,

Per Coverity.

make_ruledef function can dereference a NULL pointer (actions),

if "ev_qual" is provided and "actions" does not exist.

The comment there is contradictory: " /* these could be nulls */ "
Because if "ev_qual" is not null, "actions" cannot be either.

Solution proposed merely as a learning experience.

regards,

Ranier Vilela