Rename name to purpose and add name for t0041

Author: multimeric

tests/expand-manifest.jsonld

@@ -291,7 +291,8 @@
     }, {
       "@id": "#t0041",
       "@type": ["jld:PositiveEvaluationTest", "jld:ExpandTest"],
-      "name": "@language: null resets the default language",
+      "name": "Language nullification",
+      "purpose": "@language: null resets the default language",
       "input": "expand/0041-in.jsonld",
       "expect": "expand/0041-out.jsonld"
     }, {