mesonconf: fix tb and parsing options

Traceback (most recent call last):
  File "./mesonconf.py", line 202, in <module>
    print(args)
NameError: name 'args' is not defined

Signed-off-by: Igor Gnatenko <i.gnatenko.brain@gmail.com>

mesonconf.py

@@ -198,8 +198,7 @@ class Conf:
 
 if __name__ == '__main__':
     options = parser.parse_args()
-    if len(options.directory) > 1:
-        print(args)
+    if len(options.directory) < 1:
         print('%s <build directory>' % sys.argv[0])
         print('If you omit the build directory, the current directory is substituted.')
         sys.exit(1)