Please write in English if possible, because the Emacs maintainers

usually do not have translators to read other languages for them.

Your bug report will be posted to the bug-gnu-emacs@gnu.org mailing list,
and to the gnu.emacs.bug news group.

Please describe exactly what actions triggered the bug
and the precise symptoms of the bug:

Attached is a patch to add optional command argument to mime part piping functions.