Fixing implicit conversion warning
Fixing implicit conversion warning

adriantofan/ATNetworkActivityLoggerLumberJack,ashfurrow/AFNetworkActivityLogger,rbaumbach/AFNetworkActivityLogger,zhaihm/AFNetworkActivityLogger,bespider/AFNetworkActivityLogger,sleepio/cocoapods-afnetworkactivitylogger,Rich86man/AFNetworkActivityLogger,podkovyrin/AFNetworkActivityLogger,pim-ltd/AFNetworkActivityLumberjackLogger,AFNetworking/AFNetworkActivityLogger,Kingside/AFNetworkActivityLogger,sohayb/AFNetworkActivityLumberjackLogger