runCommand -package:options -package:shake -package:io-streams -package:graphviz -package:cabal-install -package:shake-plus -package:quickcheck-state-machine -package:mongoDB -package:pandoc-plot is:exact -package:github-release -package:process -package:hledger package:xmonad-contrib
Given a list of command/action pairs, prompt the user to choose a
command using dmenu and return the corresponding action.