Rename 'caps' argument.

diceware/diceware.py

@@ -25,10 +25,10 @@ def handle_options(args):
         help='number of words to concatenate. Default: 6')
     cap_group = parser.add_mutually_exclusive_group()
     cap_group.add_argument(
-        '-c', '--capitalize', action='store_true',
+        '-c', '--caps', action='store_true',
         help='Capitalize words. This is the default.')
     cap_group.add_argument(
-        '--no-capitalize', action='store_false', dest='capitalize',
+        '--no-caps', action='store_false', dest='capitalize',
         help='Turn off capitalization.')
     parser.set_defaults(capitalize=True)
     args = parser.parse_args(args)

tests/test_diceware.py

@@ -119,15 +119,15 @@ class TestDicewareModule(object):
         out = out.replace(
             os.path.basename(sys.argv[0]), 'diceware')
         assert out == (
-            'usage: diceware [-h] [-n NUM] [-c | --no-capitalize]\n'
+            'usage: diceware [-h] [-n NUM] [-c | --no-caps]\n'
             '\n'
             'Create a passphrase\n'
             '\n'
             'optional arguments:\n'
             '  -h, --help         show this help message and exit\n'
             '  -n NUM, --num NUM  number of words to concatenate. Default: 6\n'
-            '  -c, --capitalize   Capitalize words. This is the default.\n'
-            '  --no-capitalize    Turn off capitalization.\n'
+            '  -c, --caps         Capitalize words. This is the default.\n'
+            '  --no-caps          Turn off capitalization.\n'
             )
 
     def test_main_argv(self, argv_handler):