[Haskell-cafe] Cabal's License type: MIT commented out?

I noticed on Hackage that packages that are MIT licensed show up as "OtherLicense". I took a peek inside the Cabal code, and noticed that the License type has lines for MIT, but commented out [1]:

-- -- | The MIT license, similar to the BSD3. Very free license. -- | MIT

Why is this? Both the BSD3 and BSD4 get entries in this module. It would be nice to know up-front that a license is indeed liberal (BSD/MIT) rather than having to open up the package and look at the LICENSE file. (I also use the MIT license for my code, and would like to avoid confusing people once I start distributing Haskell libraries.) [1] http://hackage.haskell.org/packages/archive/Cabal/latest/doc/html/src/Distri...