py3: use print_function in test-duplicateoptions.py

tests/test-check-py3-compat.t

@@ -56,7 +56,6 b''
   tests/test-demandimport.py not using absolute_import
   tests/test-demandimport.py requires print_function
   tests/test-doctest.py not using absolute_import
-  tests/test-duplicateoptions.py requires print_function
   tests/test-filecache.py not using absolute_import
   tests/test-filecache.py requires print_function
   tests/test-filelog.py not using absolute_import
@@ -247,7 +246,6 b''
   mercurial/wireproto.py: error importing module: <SyntaxError> invalid syntax (bundle*.py, line *) (line *) (glob)
   tests/readlink.py: invalid syntax: invalid syntax (<unknown>, line *) (glob)
   tests/test-demandimport.py: invalid syntax: invalid syntax (<unknown>, line *) (glob)
-  tests/test-duplicateoptions.py: invalid syntax: invalid syntax (<unknown>, line *) (glob)
   tests/test-filecache.py: invalid syntax: Missing parentheses in call to 'print' (<unknown>, line *) (glob)
   tests/test-filelog.py: invalid syntax: Missing parentheses in call to 'print' (<unknown>, line *) (glob)
   tests/test-hg-parseurl.py: invalid syntax: invalid syntax (<unknown>, line *) (glob)

tests/test-duplicateoptions.py

@@ -1,4 +1,4 b''
-from __future__ import absolute_import
+from __future__ import absolute_import, print_function
 import os
 from mercurial import (
     commands,
@@ -36,6 +36,6 b' for cmd, entry in commands.table.iterite'
     for option in entry[1]:
         if (option[0] and option[0] in seenshort) or \
            (option[1] and option[1] in seenlong):
-            print "command '" + cmd + "' has duplicate option " + str(option)
+            print("command '" + cmd + "' has duplicate option " + str(option))
         seenshort.add(option[0])
         seenlong.add(option[1])