Bug#906721: RFS: plowshare/2.1.7-2

[Carl Suster <carl@contraflo.ws>]

Hi Herbert,

Thanks for looking at my packages. I'm not really sure how the old 
changelog diff happened other than that the commit responsible must have 
been lost somewhere in the migration of the repository from GitHub to 
GitLab to salsa. I fixed the changelog in a new commit.

What did you want me to update about the copyright? Whenever I do a new 
snapshot I go through the upstream diff to check for copyright statement 
changes and I didn't notice anything. I've now updated the year range 
for the packaging copyright in case that's what you meant.

Cheers,
Carl