refined names of e-2-e test files

src/test/java/gov/usgs/earthquake/nshmp/model/NshmTestUtils.java

@@ -283,7 +283,7 @@ class NshmTestUtils {
     }
 
     String resultFilename(NamedLocation location) {
-      return String.format("%s-%s-%s.json", modelName(), year(), location.name());
+      return String.format("%s.json", location.name());
     }
   }
 }