Log Message:
-----------
Update pg_dumpall -f option description.
Modified Files:
--------------
pgsql/doc/src/sgml/ref:
pg_dumpall.sgml (r1.62 -> r1.63)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/ref/pg_dumpall.sgml.diff?r1=1.62&r2=1.63)