If list-different detects differences, it should print command for fixing

It would be nice if list-different printed the command for fixing (prettier --write <files>) if it detected differences. This way, someone doesn’t have to hunt down the syntax.

[lydell]

We explored this a little in #6406, but as mentioned there and in the above two comments we decided to leave things as they are.

[kachkaev]

IMO alternative 1 (prettier --write "**/*.{css,html,js,md,yml}") is the least evil. Enumerating unformatted files explicitly does not scale (the command can get very long) and listing ‘common ways’ will probably bring more confusion than help.

As far as I understand, it’s impossible to determine whether prettier was executed via npx, via a globally installed CLI command, via a package.json script, via npm prettier / yarn prettier or by typing path/to/node_modules/.bin/prettier directly. All we have access to is the list of applied options (--config, --ignore-path, etc.). Even if all these options are relayed to the proposed --write command, there is no guarantee the command will work because we won’t be able to guess how exactly --check was called in the first place.

Given a very small demand (only 3 👍), I’d prefer not to have anything than something too fragile.