Show reponame in top/ps (featurerequest?)

I do backup multiple servers to another server at the same time over ssh.

At the time of backup I can see multiple `borg` or `borg serve --umask=022 --info` processes, but I'd like to see repository name in this command line too.

It it possible? Is there some commandline hack to achive it now?

Start by tracing how the borg serve process command line is constructed and how the repository name is passed to it. Determine whether that name can be exposed in top or ps without changing backup behavior; done means concurrent borg processes visibly identify their repositories.

Written by the indexing model from the issue text.