ref: bc046635d6368a7e81bcc172efb121d54b05ebcd dir: /lib/std/chomp.myr/
use "hasprefix" pkg std = const chomp : (str : byte[:], pfx : byte[:] -> byte[:]) ;; const chomp = {str, pfx if std.hasprefix(str, pfx) -> str[pfx.len:] else -> str ;; }