fix(power-assert): omit 5th argument (`stackStartFunction`) to run with old Node (v0.12)
fix(power-assert): omit 5th argument (`stackStartFunction`) to run with old Node (v0.12)

since it causes ReferenceError under some conditions

falsandtru/power-assert,power-assert-js/power-assert,power-assert-js/power-assert,falsandtru/power-assert,twada/power-assert,twada/power-assert