style(9). One can still use the -i option to set it to whatever. The port only exists for a few minutes, so, no revision bump.
It can prettify your program, minimise, obfuscate or just sanity check it. It can also do some rewriting. You pass it filenames (or the stdin) and the output is generated to stdout. WWW: http://catless.ncl.ac.uk/Programs/Frink/