Log Message:
-----------
Adjust to_char/from_char code to use boolean "is_to_char" rather than
integer with flags.
Modified Files:
--------------
pgsql/src/backend/utils/adt:
formatting.c (r1.94 -> r1.95)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/utils/adt/formatting.c.diff?r1=1.94&r2=1.95)