chore(*): only import one file per line (#2470)
This perhaps-unnecessarily-obsessive PR puts every import statement on its own line.
Why?
1. it's nice to be able to grep for `import X`
2. ~~if we enforced this, it would be easier deal with commands after imports, etc.~~ (irrelevant in 3.9)
3. it means I can remove all unnecessary transitive imports with a script
4. it's just tidier. :-)
Co-authored-by: Scott Morrison <scott.morrison@gmail.com>
Co-authored-by: Johan Commelin <johan@commelin.net>
