Bug#650732: devscripts: debdiff's auto sort reverses diff when two dscs have the same version

[Cyril Brulebois]

Control: tag -1 patch

Cyril Brulebois <kibi at debian.org> (02/12/2011):
> while reviewing (for sponsorship reasons) two versions of the same dsc
> (it was updated), I ran:
>   debdiff old/foo.dsc new/foo.dsc
> 
> and got a reverse diff.
> 
> Apparently, the logic behind DEBDIFF_AUTO_VER_SORT=yes is reversing a
> bit too much: in this case, the version is strictly the same in both
> dsc's, so it would be nice not to reverse in this case. ;-)

Here's a patch to fix that behaviour.

Mraw,
KiBi.
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