docs: mention Julian is midnight _UTC_
(Yes, there was no UTC back then, but we compute it that way.)
Backpatch to 9.3.
Branch
------
REL9_3_STABLE
Details
-------
http://git.postgresql.org/pg/commitdiff/2edaee01129f3494be71c7bbc7e5414ae0c37501
Modified Files
--------------
doc/src/sgml/func.sgml | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)