fix unit test data
diff --git a/output/testfuncs/string.go b/output/testfuncs/string.go
index 6d8f147..9e3eda7 100644
--- a/output/testfuncs/string.go
+++ b/output/testfuncs/string.go
@@ -23,6 +23,6 @@
 
 func HelloWorldString() []byte {
 	e := hessian.NewEncoder()
-	e.Encode("hello world1")
+	e.Encode("hello world")
 	return e.Buffer()
 }