Fix the field test for bool type (#1480)

Just as the title says.

Signed-off-by: Ryan Leung <[email protected]>

Author: rleungx

field_test.go

@@ -98,7 +98,7 @@ func TestFieldConstructors(t *testing.T) {
 		{"Skip", Field{Type: zapcore.SkipType}, Skip()},
 		{"Binary", Field{Key: "k", Type: zapcore.BinaryType, Interface: []byte("ab12")}, Binary("k", []byte("ab12"))},
 		{"Bool", Field{Key: "k", Type: zapcore.BoolType, Integer: 1}, Bool("k", true)},
-		{"Bool", Field{Key: "k", Type: zapcore.BoolType, Integer: 1}, Bool("k", true)},
+		{"Bool", Field{Key: "k", Type: zapcore.BoolType, Integer: 0}, Bool("k", false)},
 		{"ByteString", Field{Key: "k", Type: zapcore.ByteStringType, Interface: []byte("ab12")}, ByteString("k", []byte("ab12"))},
 		{"Complex128", Field{Key: "k", Type: zapcore.Complex128Type, Interface: 1 + 2i}, Complex128("k", 1+2i)},
 		{"Complex64", Field{Key: "k", Type: zapcore.Complex64Type, Interface: complex64(1 + 2i)}, Complex64("k", 1+2i)},