Fixing test which erroneously checked values and order, rather than just values.

hugolib/indexing_test.go

@@ -11,6 +11,8 @@ func TestSitePossibleIndexes(t *testing.T) {
     site.Pages = append(site.Pages, page)
     indexes := site.possibleIndexes()
     if !compareStringSlice(indexes, []string{"tags", "categories"}) {
+        if !compareStringSlice(indexes, []string{"categories", "tags"}) {
             t.Fatalf("possible indexes do not match [tags categories].  Got: %s", indexes)
         }
     }
+}