py3: use absolute_import in test-batching.py

tests/test-batching.py

@@ -5,8 +5,15 b''
 # This software may be used and distributed according to the terms of the
 # GNU General Public License version 2 or any later version.
 
-from mercurial.peer import localbatch, batchable, future
-from mercurial.wireproto import remotebatch
+from __future__ import absolute_import
+from mercurial.peer import (
+    localbatch,
+    batchable,
+    future,
+)
+from mercurial.wireproto import (
+    remotebatch,
+)
 
 # equivalent of repo.repository
 class thing(object):

tests/test-check-py3-compat.t

@@ -53,7 +53,6 b''
   tests/svn-safe-append.py not using absolute_import
   tests/svnxml.py not using absolute_import
   tests/test-atomictempfile.py not using absolute_import
-  tests/test-batching.py not using absolute_import
   tests/test-batching.py requires print_function
   tests/test-bdiff.py not using absolute_import
   tests/test-bdiff.py requires print_function