Git sideband hook output

Prior to 6d525d where Shawn made the receive-pack process send hook output over side band #2, how did the hook output get sent to the client? On older clients (before this commit) and on older servers, the hook output just shows up without the 'remote:' prefix. After this commit I get the 'remote:' prefix, which is kind of annoying. Is there a way to suppress this to get the old output format? Or a recommended way of patching the client/server in future versions to get the old format back?

Thanks, Scott