Re: [PATCH] c++: Suppress error when cv-qualified reference is introduced by typedef [PR101783]

[Jason Merrill <jason@redhat.com>]

On 10/1/21 15:52, Nick Huang wrote:
>> ...the subject line for the commit should be the first line of the
>> commit message, followed by a blank line, followed by the description of
>> the patch; without the subject line, git format-patch thought your whole
>> description was the subject of the patch.
> 
> oh,  I didn't realize this without your mentioning it. I read this guide
> (https://gcc.gnu.org/codingconventions.html#ChangeLogs) many times
> and still don't get this. I guess it was written long long ago.

FYI that's a git thing, not a ChangeLog thing.  From the git 
format-patch manual:

>        By default, the subject of a single patch is "[PATCH] " followed by the
>        concatenation of lines from the commit message up to the first blank
>        line (see the DISCUSSION section of git-commit(1)).

And from git-commit(1):

>        Though not required, it’s a good idea to begin the commit message with
>        a single short (less than 50 character) line summarizing the change,
>        followed by a blank line and then a more thorough description. The text
>        up to the first blank line in a commit message is treated as the commit
>        title, and that title is used throughout Git. For example, git-format-
>        patch(1) turns a commit into email, and it uses the title on the
>        Subject line and the rest of the commit in the body.
But yes, it would be good to give more of this instruction in the gcc 
contribute.html.

Jason