Alternative to using baseAddress!.assumingMemoryBound

Fixed array to String

import Darwin

var utsInfo = utsname()
uname(&utsInfo)

let machine = withUnsafeBytes(of: &utsInfo.machine) { (ptr) -> String? in
    return Data(ptr).withUnsafeBytes({ (ptr: UnsafePointer<CChar>) -> String? in
        return String(cString: ptr)
    })
}