py3: make test-ui-verbosity use absolute_import

tests/test-check-py3-compat.t

@@ -111,7 +111,6 b''
   tests/test-ui-color.py requires print_function
   tests/test-ui-config.py not using absolute_import
   tests/test-ui-config.py requires print_function
-  tests/test-ui-verbosity.py not using absolute_import
   tests/test-url.py not using absolute_import
 
 #if py3exe

tests/test-ui-verbosity.py

@@ -1,4 +1,4 b''
-from __future__ import print_function
+from __future__ import absolute_import, print_function
 
 import os
 from mercurial import ui