Fix bool test typo.

Author: paddycarver

types/bool_test.go

@@ -185,7 +185,7 @@ func TestBoolEqual(t *testing.T) {
 		},
 		"unknown-true": {
 			input:       &Bool{Unknown: true},
-			candidate:   &Bool{Value: false},
+			candidate:   &Bool{Value: true},
 			expectation: false,
 		},
 		"unknown-false": {