It looks like the bug reporting form destroyed the patch. I've
attached it again here.
Thanks, for the patch. Just to make sure that we didn't miss, a similar problem
can occur in v10 and v9.6 pg_dumpall. In v11, the database acl's dumping
mechanism is moved from pg_dumpall to pg_dump.
a similar change in pg_dumpall "dumpCreateDB" function works for 10 and 9.6.
Regards,
Haribabu Kommi
Fujitsu Australia