[Feature] Better description for updating scoop error

[doraeric]

Feature Request

Is your feature request related to a problem? Please describe.

It's not a real problem. Just an advice for better description for error handling.

Describe the solution you'd like

Currently, the code shows

Scoop update failed. Folder in use. Paste $newdir into $currentdir.

Since .git is a hidden folder, the user may copy contents except .git from old folder to new folder, resulting .git is still missing.
I think tell the user to rename folder would be a better choice.

Describe alternatives you've considered

Ask to user to rename folders may be a better choice, such as

Scoop update failed. Folder in use. Please rename folders $currentdir to `old` and $newdir to `current` manually.

[HUMORCE]

Basically, we just need to execute scoop update again when Scoop Core Dir are not occupied.

[doraeric]

The problem is that the directory is occupied by scoop when running scoop update, so it needs to be fixed by the user.
And if a user didn't copy the hidden .git folder from $newdir to old directory, he needs to copy everything from new directory every time.

[HUMORCE]

Scoop Core Dir will not be occupied when executing scoop update, unless you have opened it or it's sub-files in another program. e.g. A terminal cd to the dir

Your change request for this instruction is correct, because the .git dir may not included when copying.