Incorrect revision display

@hvr's recent revision to http-client-0.5.13 on Hackage's revision display (available at http://hackage.haskell.org/package/http-client-0.5.13/revisions/) displays currently as:

Specifically, the section:

> Added the library component's library dependency on
>
> > `base <0`

Implies that this dependency was added unconditionally. In fact, the dependency was added conditionally based on the GHC version. While the actual change seems to do the right thing, the diff display implies that it breaks the package for all versions of GHC.

Relevant comment: https://github.com/haskell-infra/hackage-trustees/issues/165#issuecomment-401669525