pg_dumpall appendPQExpBuffer construct sql need an white space

hi.

in src/bin/pg_dump/pg_dumpall.c
    appendPQExpBuffer(buf, " FROM pg_auth_members a "
                      "LEFT JOIN %s ur on ur.oid = a.roleid "
                      "LEFT JOIN %s um on um.oid = a.member "
                      "LEFT JOIN %s ug on ug.oid = a.grantor "
                      "WHERE NOT (ur.rolname ~ '^pg_' AND um.rolname ~ '^pg_')"
                      "ORDER BY 1,2,4", role_catalog, role_catalog,
role_catalog);

here "WHERE NOT (ur.rolname ~ '^pg_' AND um.rolname ~ '^pg_')"
need a white space at the end?