Fix for package name test break in ART

Modifying the hard-coded string in test 031.

Bug: 28131225
Test: run-test --host 031-class-attributes
Change-Id: Ifffaebd5b8595075fcde295a6e3921af99871f9d
diff --git a/test/031-class-attributes/expected.txt b/test/031-class-attributes/expected.txt
index de99872..72656ae 100644
--- a/test/031-class-attributes/expected.txt
+++ b/test/031-class-attributes/expected.txt
@@ -84,7 +84,7 @@
   enclosingCon: null
   enclosingMeth: null
   modifiers: 1
-  package: package otherpackage
+  package: package otherpackage, Unknown, version 0.0
   declaredClasses: [0]
   member classes: [0]
   isAnnotation: false