Can I avoid "n affected rows" messages?

When you perform an insert or update using mclient, you get a line printed saying "n rows affected". Now, I can avoid this line if I use -f trash on the command line - but I don't want to give up on actual output. I can also pass the output through a grep -Ev "^[0-9]+ rows affected$" as a filter, but I was wondering if I could just turn that message off somehow. I couldn't find a command-line switch which would have this effect. Eyal