Remove @graph from output when it is empty and the only member.
- See: https://github.com/json-ld/json-ld.org/issues/99#issuecomment-5048471
--- a/test-suite/tests/compact-0001-out.jsonld Thu Jan 17 20:10:11 2013 -0500
+++ b/test-suite/tests/compact-0001-out.jsonld Sat Jan 19 17:04:41 2013 -0500
@@ -1,3 +1,1 @@
-{
- "@graph": []
-}
+{}
\ No newline at end of file
--- a/test-suite/tests/compact-0003-out.jsonld Thu Jan 17 20:10:11 2013 -0500
+++ b/test-suite/tests/compact-0003-out.jsonld Sat Jan 19 17:04:41 2013 -0500
@@ -1,3 +1,1 @@
-{
- "@graph": []
-}
+{}
\ No newline at end of file