function notEqual( actual, expected, msg ) {
	/* eslint-disable no-invalid-this */
	this._assert( actual !== expected, {
		'message': msg || 'should not be equal',
		'operator': 'notEqual',
		'expected': expected,
		'actual': actual
	});
}
Asserts that `actual` is not strictly equal to `expected`.

@private
@param {*} actual - actual value
@param {*} expected - expected value
@param {string} [msg] - message