Log Message:
-----------
Document long names for format options (plain, tar, custom). They already
worked and someone asked about them, so we might as well document them.
Modified Files:
--------------
pgsql/doc/src/sgml/ref:
pg_dump.sgml (r1.81 -> r1.82)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/ref/pg_dump.sgml.diff?r1=1.81&r2=1.82)
pg_restore.sgml (r1.58 -> r1.59)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/ref/pg_restore.sgml.diff?r1=1.58&r2=1.59)