The example given for anyelement <@ anymultirange didn't return
true as claimed; adjust it so it does.

In passing, change a couple of sample results where the modern
numeric-based logic produces a different number of trailing zeroes
than before.

Erik Rijkers

Discussion: https://postgr.es/m/cc35735d-1ec1-5bb3-9e27-cddbab7afa23@xs4all.nl