ENETDOWN        Errno = 38
	ENETRESET       Errno = 39
	ENETUNREACH     Errno = 40
	ENFILE          Errno = 41
	ENOBUFS         Errno = 42
	ENODEV          Errno = 43
	ENOENT          Errno = 44
	ENOEXEC         Errno = 45
	ENOLCK          Errno = 46
	ENOLINK         Errno = 47
	ENOMEM          Errno = 48
	ENOMSG          Errno = 49
	ENOPROTOOPT     Errno = 50
	ENOSPC          Errno = 51
	ENOSYS          Errno = 52

					if err := cmd.Run(); err == nil {
						t.Fatalf("Run did not fail: expected exec error")
					} else if errors.Is(err, ErrDot) {
						t.Fatalf("Run returned unexpected error ErrDot: want error like ENOEXEC: %q", err)
					}
				})
			}
		})
	}

	// Test the behavior when the first entry in PATH is an absolute name for the
	// current directory.
	//