sim: replacing ChangeLog files with online git logs

[Mike Frysinger]

On 22 Mar 2021 05:38, Eli Zaretskii via Gdb wrote:
> > Date: Mon, 22 Mar 2021 03:19:10 +0100 (CET)
> > From: "Maciej W. Rozycki" <macro@orcam.me.uk>
> > cc: Andrew Burgess <andrew.burgess@embecosm.com>, gdb@sourceware.org
> > 
> >  For the record the glibc project has a way to automatically produce 
> > ChangeLog from commits at release time.  This may be something to look 
> > into if useful.
> 
> That's the other script in Gnulib that was mentioned in this
> discussion.  Someone said it cannot support our codebase well enough.

vcs-to-changelog assumes it's generating a ChangeLog for the entire git
repo, not a subdir.  that's why it works for glibc, and really doesn't
work for us.  unless we got agreement across all projects in here, and
i didn't want to open that can of worms.

i glanced through the script before to see if it could be adjusted to
limit its path, but it didn't seem easy to pull off, so i gave up.

not that i've evaluated it beyond that (i.e. what format it generates).
-mike