borisyankov/DefinitelyTyped — pull request #2924 by jjeffery (2014-10-04 23:30:09+00:00)
Title: Fix bug: crypto.Decipher#update() returns string, not void

Refer to http://nodejs.org/api/crypto.html#crypto_class_decipher

The method Decipher#update returns a string, not void when passed a string as its data.