runCommand -package:structured-cli -package:github-release -package:process -package:io-streams is:exact -package:cabal-install -package:pandoc-plot -package:xmonad-contrib -package:graphviz -package:hledger -package:lambdabot-core -package:Cabal

Either calls the given continuation, prints help text and calls exitSuccess, or prints an error and calls exitFailure. See runSubcommand for details on subcommand support.
Execute a Command.