pgsql: Add: < > * Prevent inet cast to cidr if the unmasked bits are

Log Message:
-----------
Add:

<

* Prevent inet cast to cidr if the unmasked bits are not zero, or
zero bits

Modified Files:
--------------
pgsql/doc:
TODO (r1.1362 -> r1.1363)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/TODO.diff?r1=1.1362&amp;r2=1.1363)