Differential e-mail subject re-arrangement

[Michael Pyne]

On Tue, Feb 28, 2017 at 08:38:12PM +0100, Ivan Čukić wrote:
> >   [Differential] D4508: Plasma controls based on QtQuickControls2 [Commented On]
> >
> > I personally find that having a "vertical" line in which all the subjects of the differential emails start makes it much easier to read.
> 
> +1 I'd even shorten The 'Differential' part of it to just 'Diff'.

Agreed to both.

Regards,
 - Michael Pyne