[Linter] Re-enable Github https warning.
[Linter] Re-enable Github https warning.

See #324.

mglidden/CocoaPods,mglidden/CocoaPods,vivekshukla-mob-ibtech/Repository,mglidden/CocoaPods,Ashton-W/CocoaPods,segiddins/CocoaPods,0xced/CocoaPods,ashfurrow/CocoaPods,orta/CocoaPods