, attrnamespace int, attrname string) (err error) {  var _p0 *byte  _p0, err = BytePtrFromString(attrname)  if err != nil {   return  }  _, _, e0 := Syscall(SYS_EXTATTR_DELETE_FD, uintptr(fd), uintptr(attrnamespace), uintptr(unsafe.Pointer(_p0)))  use(unsafe.Pointer(_p0))  if e0 != 0 {   err = errnoErr(e0)  }  return }  // THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT  func ExtattrListF