Qfs tool: handle strftime() possible errors by setting the time buffer to "-".
Qfs tool: handle strftime() possible errors by setting the time buffer to "-".

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