add an -inplace option?

[Mistobaan]

I think it would be useful to add an --inplace option where the target destination file is the source file :)

[a8m]

sounds like a good idea.
but imo, -w is a better name for the flag. (similar to gofmt).

[icy]

I think it would be useful to add an --inplace option where the target destination file is the source file :)

I think you can just use https://linux.die.net/man/1/sponge ?

[polarathene]

For reference a similar CLI tool (written in Rust) also uses -w: https://github.com/igtm/envbed