lib/path.js
function ns(rootpath, src) {
  return _.compact(src.replace(rootpath, '').split(path.sep)).join('.')
}
function ns(rootpath, src) {
  return _.compact(src.replace(rootpath, '').split(path.sep)).join('.')
}
function ns ( rootpath , src ) { return _ . compact ( src . replace ( rootpath , '' ) . split ( path . sep ) ) . join ( '.' ) }
FORMAT
 returns formatted /path/to/file.js -> path.to.file
FORMAT returns formatted / path / to / file . js - > path . to . file