This is a stupid little tool that just reads text from the input, and emits it to standard output.
You need cabal and a Haskell compiler (e.g. GHC) installed. Then,
clone this into some directory, cd into it, and run
$ cabal configure
$ cabal build
$ cabal install
Pipe stuff into it. Watch it spit out timestamped lines. Be amazed.
See the LICENSE file.