update prettier and clang-format cli options in format.py

[anonrig]

• Replaced --check with --list-different to reduce noise (hides the files that does not need formatting)
• Added --log-level=warn on formatting where now it prints only the files that actually changed.

[danlapid]

Is this for taste or performance?
If it's for the latter, what kind of difference are you seeing in formatting time?

[npaun]

If it's just to cut down on noise I think --check + --log-level=warn will look nicer than --list-different?

[anonrig]

Is this for taste or performance? If it's for the latter, what kind of difference are you seeing in formatting time?

Mostly for taste. I don't have githooks enabled, and I run python3 tools/cross/format.py manually, which just forces me to clear my terminal everytime I run it.

My local benchmarks using hyperfine -i "node_modules/.bin/prettier . --check" "node_modules/.bin/prettier . --list-different" shows that --list-different is 3-5% faster but I don't think that's really my reasoning for this pull-request.

[hoodmane]

I agree with @anonrig that we should get rid of clang-format --verbose. I don't want the formatting command to generate multiple screens worth of output.

[jasnell]

+1 to going with the less verbose output

[anonrig]

Would you mind reviewing this pull-request?