This commit adds documentation to the already publicly available
readline.emitKeypressEvents() method.
PR-URL: https://github.com/nodejs/node/pull/6024
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>
Reviewed-By: Fedor Indutny <fedor.indutny@gmail.com>