Add --remote option (default: origin)

[op-ct]

This patch adds a --remote option for repos that use a remote other than origin

[ianfixes]

If you'd like this feature to be added, I'd be glad to do so. I like the idea but I'd want to see some unit tests added -- something that shouldn't be your problem.

Can you explain what this modification is doing? Why isn't it git remote get-url #{@remote}?

    def origin_url
      `git remote -v`.lines.grep(/^#{@remote}\b/).first.split(/\s+/)[1]
    end

[op-ct]

Thanks!

get-url isn’t available on older git versions, so the previous command fails on some OS distros like EL7.