Please ensure Signed-off-by and similar trailers are hyphenated

[Christophe Lyon]

On 6/15/26 15:46, Jonathan Wakely via Gcc wrote:
> https://git-scm.com/docs/git-interpret-trailers says:
> 
> When reading trailers, there can be no whitespace before or inside the
> <key>, but any number of regular space and tab characters are allowed
> between the <key> and the separator. There can be whitespaces before,
> inside or after the <value>. The <value> may be split over multiple
> lines with each subsequent line starting with at least one whitespace,
> like the "folding" in RFC 822.
> 
> Formatting these Git trailers correctly ensures they can be used with
> git-interpret-trailers and found with a simple 'git log --grep' query,
> without having to match a mix of correct and incorrect forms using a
> regex.  This is especially important for Signed-off-by: because the
> DCO sign-off is legally significant and it makes things harder to
> check if you use the wrong form of the tag.
> 
> Please ensure that all trailers in Git commit messages are hyphenated,
> e.g. "Co-authored-by:" not "Co-authored by:", and especially not
> "Signed off by:"

Is this something we can / want to add to 
contrib/gcc-changelog/git_check_commit.py ?

Thanks,

Christophe