images.loader.cocoa: Fix images on older macOS.
images.loader.cocoa: Fix images on older macOS.

There is probably a better version than 11 to check for.

tgunr/factor,factor/factor,mrjbq7/factor,tgunr/factor,factor/factor,tgunr/factor,tgunr/factor,mrjbq7/factor,factor/factor,factor/factor,tgunr/factor,mrjbq7/factor,factor/factor,mrjbq7/factor,tgunr/factor,mrjbq7/factor,factor/factor,mrjbq7/factor