Log Message:
-----------
Document that the "-P" option to pg_autovacuum is insecure on many
platforms, and suggest using ~/.pgpass instead.
Modified Files:
--------------
pgsql/contrib/pg_autovacuum:
README.pg_autovacuum (r1.12 -> r1.13)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/contrib/pg_autovacuum/README.pg_autovacuum.diff?r1=1.12&r2=1.13)