Applied: [SRU] LP#1604344 -- avoid duplicate CVE numbers in changelog

[Kamal Mostafa]

On Tue, Jul 19, 2016 at 04:20:24PM +0100, Andy Whitcroft wrote:
> It seems the recent update to add CVE entries to the changelog can
> result in duplicate entries.  Fix this silly thinko.
> 
> Proposing for all live series.

Applied to {P,T,V,X}.

 -Kamal