topology_upgrade_20_minor.sql is harmful

[strk]

Right after sourcing topology_upgrade_20_minor.sql, my topology.CreateTopology() doesn't work anymore.

See this session:

strk=# select droptopology('tt');
Topology 'tt' dropped
strk=# select createtopology('tt');
ERROR:  schema "tt" does not exist

Sourcing topology.sql fixes things again:

strk=# select droptopology('tt');
Topology 'tt' dropped
strk=# select createtopology('tt');
2086

Sourcing topology_upgrade_20_minor.sql breaks again as in the first example.

[strk]

The upgrade script generator is stripping a line:

        EXECUTE '
CREATE SCHEMA ' || quote_ident(atopology) || ';
        ';

Becomes:

        EXECUTE '
        ';

No wonder it fails…

[strk]

Fixed in r8239 by changing topology.sql so to be less confusing to sed.