Avoid unnecessary variable in mirror_image.py (#239)

Signed-off-by: Sergio Arroutbi <[email protected]>

Author: sarroutbi

tools/cluster_tools/mirror_image.py

@@ -203,8 +203,7 @@ def main():
     - parse parameters
     - perform mirroring
     """
-    args = parse_parameters()
-    run_command_sequence(args)
+    run_command_sequence(parse_parameters())
 
 if __name__ == '__main__':
     main()