tests: update py3 test since json fields are now sorted

The fields have been sorted since 814151cd8c4a (logcmdutil: rewrite
jsonchangeset printer to be backed by jsonformatter, 2018-04-13), and
the test case has thus been failing since that commit.

Differential Revision: https://phab.mercurial-scm.org/D3570

tests/test-py3-commands.t

@@ -198,28 +198,28 b' Prove the repo is valid using the Python'
   $ $PYTHON3 $HGBIN log -Tjson
   [
    {
-    "rev": 1,
-    "node": "e1e9167203d450ca2f558af628955b5f5afd4489",
+    "bookmarks": [],
     "branch": "default",
-    "phase": "draft",
-    "user": "test",
     "date": [0, 0],
     "desc": "message",
-    "bookmarks": [],
+    "node": "e1e9167203d450ca2f558af628955b5f5afd4489",
+    "parents": ["71c96e924262969ff0d8d3d695b0f75412ccc3d8"],
+    "phase": "draft",
+    "rev": 1,
     "tags": ["tip"],
-    "parents": ["71c96e924262969ff0d8d3d695b0f75412ccc3d8"]
+    "user": "test"
    },
    {
-    "rev": 0,
-    "node": "71c96e924262969ff0d8d3d695b0f75412ccc3d8",
+    "bookmarks": [],
     "branch": "default",
-    "phase": "draft",
-    "user": "test",
     "date": [0, 0],
     "desc": "commit performed in Python 3",
-    "bookmarks": [],
+    "node": "71c96e924262969ff0d8d3d695b0f75412ccc3d8",
+    "parents": ["0000000000000000000000000000000000000000"],
+    "phase": "draft",
+    "rev": 0,
     "tags": [],
-    "parents": ["0000000000000000000000000000000000000000"]
+    "user": "test"
    }
   ]