pgsql: Fix documentation about size of interval type.

Fix documentation about size of interval type.

It's been 16 bytes, not 12, for ages. This was fixed in passing in HEAD
(commit 146604ec), but as a factual error it should have been back-patched.
Per gripe from Tatsuhito Kasahara.

Branch
------
REL8_4_STABLE

Details
-------
http://git.postgresql.org/pg/commitdiff/1bd1ba8d1f0fdb4dfde40b89f30ce0bbeb2ed995

Modified Files
--------------
doc/src/sgml/datatype.sgml | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

--
Sent via pgsql-committers mailing list (pgsql-committers@postgresql.org)
To make changes to your subscription:
http://www.postgresql.org/mailpref/pgsql-committers