fixed complier warning
fixed complier warning

yyMlv/SwiftHTTP,cwoloszynski/SwiftHTTP,sunfei/SwiftHTTP,robert1982/Swift-Http,mtdtao/SwiftHTTP,cwoloszynski/SwiftHTTP,krin-san/SwiftHTTP,yinchuandong/SwiftHTTP,jhinsel/SwiftHTTP,alex-learn/SwiftHTTP,mtdtao/SwiftHTTP,tanimislam/SwiftHTTP,iThanh/SwiftHTTP,tanimislam/SwiftHTTP,upf/SwiftHTTP,daltoniam/SwiftHTTP,ohad7/SwiftHTTP,iThanh/SwiftHTTP,daltoniam/SwiftHTTP,alex-learn/SwiftHTTP,raheelahmad/SwiftHTTP,ohad7/SwiftHTTP,raheelahmad/SwiftHTTP,yyMlv/SwiftHTTP,krin-san/SwiftHTTP,ceosilvajr/SwiftHTTP,ceosilvajr/SwiftHTTP,msdgwzhy6/SwiftHTTP,modulexcite/SwiftHTTP,sunfei/SwiftHTTP,xiexinze/SwiftHTTP,yinchuandong/SwiftHTTP,msdgwzhy6/SwiftHTTP,ohad7/SwiftHTTP,ChinaPicture/SwiftHTTP,tanimislam/SwiftHTTP,ChinaPicture/SwiftHTTP,sunfei/SwiftHTTP,upf/SwiftHTTP,ChinaPicture/SwiftHTTP,modulexcite/SwiftHTTP,xiexinze/SwiftHTTP,robert1982/Swift-Http,mtdtao/SwiftHTTP,msdgwzhy6/SwiftHTTP,krin-san/SwiftHTTP,raheelahmad/SwiftHTTP,ceosilvajr/SwiftHTTP,modulexcite/SwiftHTTP,yyMlv/SwiftHTTP,robert1982/Swift-Http,jhinsel/SwiftHTTP