Log Message:
-----------
A bit of copy-editing on back-branch release notes.
Modified Files:
--------------
pgsql/doc/src/sgml:
release.sgml (r1.470 -> r1.471)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/release.sgml.diff?r1=1.470&r2=1.471)