Test buf.constructor is set to Buffer
Test buf.constructor is set to Buffer

Currently fails in Safari 5.1. See https://saucelabs.com/beta/tests/c99d86b2a82944539bbb1fe25a8506d3

LiuDeng/buffer,LiuDeng/buffer,loon3/buffer,btd/buffer,kawanet/buffer,LinusU/buffer,nolanlawson/buffer,kawanet/buffer,feross/buffer,beni55/buffer,beni55/buffer,feross/buffer,btd/buffer,nolanlawson/buffer,feross/buffer,SAGV/buffer,LinusU/buffer,loon3/buffer,SAGV/buffer