supybot-reset-password: Update help string to match the man page

scripts/supybot-reset-password

@@ -51,7 +51,7 @@ def main():
                       help='username for the user.')
     parser.add_option('-p', '--password', action='store', default='',
                       dest='password',
-                      help='password for the user.')
+                      help='new password for the user.')
     (options, args) = parser.parse_args()
     if len(args) != 1:
         parser.error('Specify the users.conf file you\'d like to use.  '