adds a newline to the end of any file that does not end in a newline

gistfile1.sh

function fix-file-endings () {
  for f in `git ls-files`
  do
    newline='
    '
    lastline=$(tail -n 1 $f; echo x); lastline=${lastline%x}
    [ "${lastline#"${lastline%?}"}" != "$newline" ] && echo >> $f
  done
}