Log Message:
-----------
Fix invalid ipv6 address in example. Per doc comment 7211.
Modified Files:
--------------
pgsql/doc/src/sgml:
datatype.sgml (r1.221 -> r1.222)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/datatype.sgml?r1=1.221&r2=1.222)