~/mw/extensions/_tmp_$ od test.php
0000000 037474 064160 005160 062564 072163 037412 005076 000012
0000017
~/mw/extensions/_tmp_$ find . -name '*.php' | xargs perl -pi -e 's/\s+$/\n/'
~/mw/extensions/_tmp_$ od test.php
0000000 037474 064160 005160 062564 072163 037412 005076 000012
0000017
~/mw/extensions/_tmp_$