destutil: use absolute_import

mercurial/destutil.py

@@ -5,6 +5,8 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 __future__ import absolute_import
+
 from .i18n import _
 from . import (
     bookmarks,

tests/test-check-py3-compat.t

@@ -103,7 +103,6 b''
   mercurial/commands.py not using absolute_import
   mercurial/commandserver.py not using absolute_import
   mercurial/context.py not using absolute_import
-  mercurial/destutil.py not using absolute_import
   mercurial/dirstate.py not using absolute_import
   mercurial/dispatch.py requires print_function
   mercurial/encoding.py not using absolute_import