Log Message:
-----------
Prevent to_char(interval) from dumping core on month-related formats
when a zero-month interval is given. Per discussion with Karel.
Tags:
----
REL7_2_STABLE
Modified Files:
--------------
pgsql/src/backend/utils/adt:
formatting.c (r1.49 -> r1.49.2.1)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/utils/adt/formatting.c.diff?r1=1.49&r2=1.49.2.1)