bug#44702: [PATCH] ; * lisp/emacs-lisp/package.el: Fix Author line.

[Eli Zaretskii <eliz@gnu.org>]

> From: Stefan Kangas <stefan@marxist.se>
> Date: Tue, 17 Nov 2020 04:30:45 -0800
> Cc: tom@tromey.com
> 
> I think the "Author" header line in package.el does not accurately
> reflect the contributions to that file.  In particular, I think Tom
> Tromey should be listed as the sole author of package.el, in line with
> our practices and to recognize his contribution.
> 
> Please see the attached patch and compare it the output of the following
> command:
> 
> $ git shortlog -sn -- lisp/emacs-lisp/package.el | cat -n
> 
>      1	   132	Artur Malabarba
>      2	    54	Glenn Morris
>      3	    52	Stefan Monnier
>      4	    46	Chong Yidong
>      5	    40	Paul Eggert
>      6	    23	Stefan Kangas
>      7	    16	Dmitry Gutov
>      8	    11	Lars Ingebrigtsen
>      9	     8	Daiki Ueno
>     10	     8	Juanma Barranquero
>     11	     7	Eli Zaretskii
>     12	     7	Sam Steingold
>     13	     5	Noam Postavsky
>     14	     5	Ted Zlatanov
>     15	     4	John Wiegley
>     16	     4	Pieter van Oostrum
>     17	     3	Basil L. Contovounesios
>     18	     3	Bastien Guerry
>     19	     3	Nicolas Richard
>     20	     3	Phil Hagelberg
>     21	     3	Thien-Thi Nguyen
>     22	     3	Thierry Volpiatto
>     23	     3	Thomas Fitzsimmons
>     24	     2	Chunyang Xu
>     25	     2	Daniel Hackney
> 
> Any objections?

The number of commits doesn't necessarily tell how significant was the
contribution; you need to count the number of added/changed lines
instead.  As an extreme example, the original author who write a
package from scratch and installed it in a single commit will be at
the tail of your list, but that doesn't express correctly the
contribution of that person.