pandoc 1.12.4.2

I guess the CI system hides failed builds after the patch has been re-uploaded:

http://bot.brew.sh/job/Homebrew%20Pull%20Requests/12317/version=mavericks/testReport/junit/brew-test-bot/mavericks/install_pandoc/

Basically, the build had selected zip-archive 0.2.3, which has a buggy constraint on binary >= 0.5 (should have been binary >= 0.7), which leads to failed builds when cabal selects to build with binary 0.5. The newer zip-archive 0.2.3.2 fixes the build constraints to specify the correct version of binary.

I will report the bug upstream.

Not sure how to add a comment to the report/announcement. (I'm new to contributing to Homebrew.) Please clarify?