Meta server: fix mode validation in chmod RPC handler by adding the missing return statement.
Meta server: fix mode validation in chmod RPC handler by adding the missing return statement.

quantcast/qfs,qnu/qfs,fengshao0907/qfs,chanwit/qfs,chanwit/qfs,qnu/qfs,quantcast/qfs,thebigbrain/qfs,qnu/qfs,quantcast/qfs,qnu/qfs,chanwit/qfs,fengshao0907/qfs,fengshao0907/qfs,quantcast/qfs,thebigbrain/qfs,chanwit/qfs,thebigbrain/qfs,thebigbrain/qfs,chanwit/qfs,thebigbrain/qfs,chanwit/qfs,fengshao0907/qfs,qnu/qfs,chanwit/qfs,thebigbrain/qfs,qnu/qfs,chanwit/qfs,fengshao0907/qfs,fengshao0907/qfs,quantcast/qfs,fengshao0907/qfs,quantcast/qfs,quantcast/qfs,qnu/qfs,quantcast/qfs,thebigbrain/qfs,fengshao0907/qfs,thebigbrain/qfs,qnu/qfs