Auto merge of #5559 - alexcrichton:update-core-foundation, r=alexcrichton
Auto merge of #5559 - alexcrichton:update-core-foundation, r=alexcrichton

Update version of core-foundation crate

rust-lang/cargo,rustyhorde/cargo,nipunn1313/cargo,eminence/cargo,eminence/cargo,rustyhorde/cargo,rust-lang/cargo,tsurai/cargo,tsurai/cargo,rust-lang/cargo,tshepang/cargo,vojtechkral/cargo,nipunn1313/cargo,vojtechkral/cargo,nipunn1313/cargo,rustyhorde/cargo,tshepang/cargo,nipunn1313/cargo,tsurai/cargo,rust-lang/cargo,tshepang/cargo,tsurai/cargo,eminence/cargo,tsurai/cargo,eminence/cargo,vojtechkral/cargo,vojtechkral/cargo,rustyhorde/cargo,tshepang/cargo