re: Rules question: Did Strall have to throw a pitch after the rain delay?

Just like a pitch hitter that is announced before the rain delay is in the game and the batter he replaced is out for the rest of the game.

What I don't understand is why the office box score has Strall has a "-" under the number of pitches. I understand that the he was not officially charged with the walk by I thought he would have shown up in the box score has having thrown a pitch.