Fix reporting when using negated assertions
At the moment when using a not
assertion, the reports looks odd:
Expected "actual" to be strictly unequal to: 1
expected: 1
got: 1
(compared using notStrictEqual)
It would be better if it looked like:
Expected "actual" to be strictly unequal to: 1
expected: not 1
got: 1
(compared using notStrictEqual)