added spec for $array, $choose, $missing.
added spec for $array, $choose, $missing.

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