Is analyze_new_cluster.sh still useful?

Hi,

now that we have vacuumdb --all --analyze-in-stages in 9.4, wouldn't
it make sense to get rid of the analyze_new_cluster.sh file which
pg_upgrade writes? The net content is a single line which could as
well be printed by pg_upgrade itself. Instead of an lengthy
explanation how to invoke that manually, there should be a short note
and a pointer to some manual section. I think the chances of people
reading that would even be increased.

Similary, I don't really see the usefulness of delete_old_cluster.sh
as a file, when "rm -rf" could just be presented on the console for
the admin to execute by cut-and-paste.

Christoph
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