[PATCH] Make select_views regression test output deterministic

Greetings,

select_views runs "SELECT * FROM street" with no ORDER BY, and its iexit
query, "SELECT name, #thepath", orders only by name and the point count.
Both lean on heap scan order for the rest, so the expected output isn't
deterministic and can shift with page layout or scan order.

The fix gives each query a total ordering (COLLATE "C" so it's
locale-independent).  Since the ordering covers every output column, rows a
scan could reorder are identical in the output anyway, so the result is
stable.

The expected-output diff is large, but it's only reordered rows.  The lines
are wide because thepath is a geometric path column, and no query result
changes.  Full regression passes with the regenerated file.

--
Bryan Green
EDB: https://www.enterprisedb.com