fix for deploy command

Author: xiaodong-ji

_cmd.py

@@ -2017,7 +2017,7 @@ def __init__(self):
 
     def _do_command(self, obd):
         args = copy.copy(self.args)
-        if args[0]=="deploy":
+        if args[0]=="deploy" and len(args)==1:
             ROOT_IO.print("Use 'obd tool install %s' instead" % COMP_OCEANBASE_DIAGNOSTIC_TOOL)
             return obd.install_tool(COMP_OCEANBASE_DIAGNOSTIC_TOOL)
         for i in range(len(self.args)):