Vincent Legoll 写道：
> here is is patch with S-O-B

This is not necessary.  Signed-off-by is used in Guix when 
committing a patch by another author (usually because the author 
themselves lacks commit access):

  From: Vincent Legoll <vincent.legoll@gmail.com>
  Subject: <blah>

  <blaah>

  Signed-off-by: Tobias Geerinckx-Rice <me@tobias.gr>

You never add it for yourself.  So I've applied your first 
version, added my own S-O-B, and tweaked the commit message:

- Split it into 2 parts: a 1-line summary and a ≥1-line 
  enumeration of the changes.
- Capitalised the sentences.

Pushed as 13c6f9c9885092fe693ad29b0fe1e807de11a548.

Thanks!

T G-R