We have adopted these and don't consider them 'contrib' code.
Unit Tests Skipped
I much prefer the formatted version, except perhaps for the BITOP macro.
We have adopted these functions; changes from musl, if any, would be manually applied if this change goes in.
OpenBSD also imported some musl string routines and reformatted them.
Seems like clang-format assumes that op( is a function call and then the formatting for the rest of the line is broken.