jashkenas/coffee-script — pull request #3346 by mietek (2014-02-02 02:31:12+00:00)
Title: Add --no-beep to command, to suppress --watch bell

Since #1953, a bell has been warning the user on compilation failures with `--watch`. In recent versions of OS X, the Terminal icon bounces in the Dock twice for each bell, even if the audible (and visual) bell is turned off. This patch aims to provide a remedy.