Fix names of Variant operators

core/variant_op.cpp

@@ -3728,8 +3728,9 @@ static const char *_op_names[Variant::OP_MAX] = {
 	"*",
 	"/",
 	"- (negation)",
+	"+ (positive)",
 	"%",
-	"..",
+	"+ (concatenation)",
 	"<<",
 	">>",
 	"&",