Add self and idlelib to CODEOWNERS file. (python#3889)

terryjreedy · web-flow · commit 55fd06605b5d · 2017-10-04T22:15:11.000-04:00
Followed format of other entries.
diff --git a/.github/CODEOWNERS b/.github/CODEOWNERS
@@ -49,3 +49,5 @@ Python/bootstrap_hash.c       @python/crypto-team
 **/*heapq*                    @rhettinger
 **/*functools*                @ncoghlan @rhettinger
 **/*decimal*                  @rhettinger @skrah
+
+**/*idlelib*                  @terryjreedy
