LamPham/cocos2d-iphone — comment on commit 14e85286b7a3e2188fbdbbb988a9b724ef5af646
File: cocos2d/CCProgressTimer.m line 88
By LamPham:

That's true. The default init was created since I thought there maybe some usefulness in instantiating the class without a need for a sprite but it's rarely used so it'll be better to remove that init and move all those initializers into initWithSprite.