Confusing message for command 'upgrade'

[tbrowder]

When running

zef upgrade Foo

whose current version is 1, the current response is approximately

...will upgrade version 2...

A friendlier message would be something like:

...upgrade from version 1 to version 2...

[ugexe]

The current message makes more sense in the context of potentially multiple versions having already been installed

[tbrowder]

Then just

...installing ...

[ugexe]

I believe it will already say ...installing... later on when the install actually happens, so I don't want to duplicate that. I wonder if the upgrade text should instead reference the original module without version. For instance, zef upgrade zef should say like updating zef:auth<github:ugexe> (and later on the installing zef:auth<github:ugexe>:ver<...>)

[tbrowder]

Sounds like an improvement!