Replace `to.be.true` assertion with `to.equal(true)` per style guide
Replace `to.be.true` assertion with `to.equal(true)` per style guide

dustinsanders/enzyme,CurtisHumphrey/enzyme,airbnb/enzyme,dustinsanders/enzyme,hartzis/enzyme,hartzis/enzyme,CurtisHumphrey/enzyme,seejee/enzyme,toddw/enzyme,airbnb/enzyme,toddw/enzyme,seejee/enzyme