Potentially transform a file
transform_utf8_one(path, fun, dry)
A vector with file paths to transform.
A function that returns a character vector.
To indicate whether styler should run in dry mode, i.e. refrain
from writing back to files ."on"
and "fail"
both don't write back, the
latter returns an error if the input code is not identical to the result
of styling. "off", the default, writes back if the input and output of
styling are not identical.