fixed bug with --scan.
fixed bug with --scan.

devkev/mtools,ces0712/mtools,rueckstiess/mtools,aerrami/mtools,tomzhang/mtools,devkev/mtools,tomzhang/mtools,devkev/mtools,corymintz/mtools,rueckstiess/mtools,yaowenqiang/mtools,gormanb/mtools,corymintz/mtools,aerrami/mtools,parkhyeonghwa/mtools,gormanb/mtools,ces0712/mtools,tomzhang/mtools,corymintz/mtools,yaowenqiang/mtools,parkhyeonghwa/mtools,yaowenqiang/mtools,ces0712/mtools,aerrami/mtools,gormanb/mtools,parkhyeonghwa/mtools