check args for version command

cccli/command/shell.py

@@ -20,6 +20,8 @@ class Command_quit(Command):
 class Command_version(Command):
     '''Print cli version'''
     def __call__(self, argv):
+        if len(argv) != 1:
+            raise cmdBadArgument()
         import cccli
         self.printer.out(cccli.version)