Fix a typo in the doc comment of `std::os::unix::thread::JoinHandleExt`
Fix a typo in the doc comment of `std::os::unix::thread::JoinHandleExt`

GBGamer/rust,aidancully/rust,GBGamer/rust,aidancully/rust,GBGamer/rust,aidancully/rust,aidancully/rust,GBGamer/rust,aidancully/rust,aidancully/rust,graydon/rust,GBGamer/rust,graydon/rust,graydon/rust,graydon/rust,GBGamer/rust,graydon/rust,GBGamer/rust,GBGamer/rust,graydon/rust