do-rebase: add more options to not depend on the user git configuration
    
    The patches generated by do-rebase depend on the user having core.abbrv=11
    in their .gitconfig and also a diff.orderFile set.
    
    These assumptions were removed for the git format-patch command by passing
    all the configuration as options, but it was still present for git diff.
    
    Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>