Fix PrintVersion

core.go

@@ -16,5 +16,5 @@ var (
 
 func PrintVersion() {
 	fmt.Printf("V2Ray %s (%s) %s%s", version, codename, build, platform.LineSeparator())
-	fmt.Print("%s%s", intro, platform.LineSeparator())
+	fmt.Printf("%s%s", intro, platform.LineSeparator())
 }