BUG #13608: 3 argument range constructor functions

The following bug has been logged on the website:

Bug reference: 13608
Logged by: Robert Kruus
Email address: robert(dot)kruus(at)gov(dot)sk(dot)ca
PostgreSQL version: 9.3.9
Operating system: FreeBSD (9.2)
Description:

The int4range, int8range, daterange functions seem to be ignoring the 3rd
argument which specifies the interval bounds.
i.e.
SELECT daterange('2010-01-01'::date, '2011-01-01'::date, '()'::text);
daterange
-------------------------
[2010-01-02,2011-01-02)

It works fine for numrange, tsrange, tstzrange.
i.e.
SELECT numrange(1,4, '()');
numrange
----------
(1,4)

PostgreSQL 9.3.9 on amd64-portbld-freebsd9.2, compiled by FreeBSD clang
version 3.3 (tags/RELEASE_33/final 183502) 20130610, 64-bit