Fix the Python 2 signature of tempfile._TemporaryFileWrapper.write. (#2465)

stdlib/2/tempfile.pyi

@@ -1,4 +1,4 @@
-from typing import Tuple, IO, Union, AnyStr, Any, overload, Iterator, List, Iterable, Optional
+from typing import Any, AnyStr, IO, Iterable, Iterator, List, Optional, overload, Text, Tuple, Union
 from thread import LockType
 from random import Random
 
@@ -45,7 +45,7 @@ class _TemporaryFileWrapper(IO[str]):
     def tell(self) -> int: ...
     def truncate(self, size: Optional[int] = ...) -> int: ...
     def writable(self) -> bool: ...
-    def write(self, s: str) -> int: ...
+    def write(self, s: Text) -> int: ...
     def writelines(self, lines: Iterable[str]) -> None: ...