Don't avoid 1-element vectors/lists

[vemv]

#308 started going more into the how to ns direction, however there's still a difference:

I'd say we should favor lists/vectors (as opposed to unwrapping elements) so that:

• we don't contribute to a proliferation of styles
• things are sortable via M-x sort-lines
  • else it won't meaningfully sort in mixed presence of colls vs. symbols.
• indentation is consistent.

This particularly matters because e.g. rename-file-or-dir always performs a clean-ns, so renaming a ns should not change other aspects of its ns form (presumably formatted/linted with a variety of tools).

[camsaul]

Is there some way to disable this change so we can keep the old functionality?

[vemv]

We can introduce a feature flag (which would have to be settable from clj-refactor.el also), PRs welcome as well

btw would appreciate camsaul/whitespace-linter#9 - might be a fair exchange 😇