Output wordlists dir in help.

diceware/__init__.py

@@ -87,7 +87,10 @@ def handle_options(args):
     """Handle commandline options.
     """
     random_sources = get_random_sources().keys()
-    parser = argparse.ArgumentParser(description="Create a passphrase")
+    parser = argparse.ArgumentParser(
+        description="Create a passphrase",
+        epilog="Wordlists are stored in %s" % WORDLISTS_DIR
+        )
     parser.add_argument(
         '-n', '--num', default=6, type=int,
         help='number of words to concatenate. Default: 6')

tests/exp_help_output.txt

@@ -20,3 +20,6 @@ optional arguments:
                         Get randomness from this source. Possible values:
                         `realdice', `system'. Default: system
   --version             output version information and exit.
+
+Wordlists are stored in
+<PATH-TO-WORDLISTS-DIR>

tests/test_diceware.py

@@ -304,6 +304,7 @@ class TestDicewareModule(object):
             os.path.dirname(__file__), 'exp_help_output.txt')
         with open(expected_path, 'r') as fd:
             expected_output = fd.read()
+        out = out.replace(WORDLISTS_DIR, "<PATH-TO-WORDLISTS-DIR>")
         assert out == expected_output
 
     def test_main_version(self, argv_handler, capsys):