Update to #2389 (#2443)
Update to #2389 (#2443)

* Clarify OS versions affected by download resume bug (#2389)

* Rephrase a bit.

yimajo/Alamofire,Alamofire/Alamofire,easyui/Alamofire,antigp/Alamofire,easyui/Alamofire,yimajo/Alamofire,antigp/Alamofire,Alamofire/Alamofire