Re: [Emacs-diffs] master e820f16: Added file-tree-walk to files.el.

[Paul Eggert <eggert@cs.ucla.edu>]

On 12/03/2014 11:27 AM, Eric S. Raymond wrote:
> You want it even when the ChangeLog part is a trivial
> repetition of the summary line?

It's not needed for one-liners.  For commit 
e820f16c06a5a6be4bc87910b349c7c3c6eca0f4, for example, your ChangeLog 
entry was "* files.el (file-tree-walk): Lisp translation of ANSI 
ftw(3).", and that one-liner should have been the git commit message, too.

For longer messages, please use the same text for both the ChangeLog 
file as for the commit message, except omit the 2nd-blank-line in the 
former and omit the leading tabs in the latter.  For commit 
b1a765b3a8586cd53c21579982c8fbc0ce534336, in contrast, it would have 
been better to use the following text (removing indentation) as the 
commit message:

     In vc, abolish the dir-status method.

     *  vc.el, all backends: API simplification: Abolish dir-status.
     It's replaced by dir-status-files.

and to use the same text (with indentation, but without the blank line) 
as the ChangeLog entry.

It is a pain to have to have essentially two copies of the same text, 
one in the ChangeLog file and the other in the commit message, but we 
haven't yet had strong consensus on fixing this.