use the PostgreSQL 8 world order name: ROLE instead of USER

postgresql81/postgresql81.spec

@@ -677,7 +677,7 @@ Conflicts:    postgresql
           echo "    \$ $RPM_INSTALL_PREFIX/etc/rc postgresql start"
           echo "you should immediately change this with the following command:"
           echo "    \$ $RPM_INSTALL_PREFIX/bin/psql -U $l_pguser -d template1 \\"
-          echo "      -c \"ALTER USER $l_pguser WITH PASSWORD '<new-password>'\""
+          echo "      -c \"ALTER ROLE $l_pguser WITH PASSWORD '<new-password>'\""
           echo "Then you usually create a database for a user <user> (assuming that"
           echo "his home directory is /u/<user>) with password <password> under"
           echo "path /u/<user>/rdbms with the commands:"