Kurt's roundup id is kbk, use that in maintainers.rst instead of

bitdancer · bitdancer · commit 9ab54ca852fe · 2010-04-12T15:19:03.000Z
his checkin id, since maintainers is for finding people to make
nosy in the tracker.
diff --git a/Misc/maintainers.rst b/Misc/maintainers.rst
@@ -113,7 +113,7 @@ heapq               rhettinger
 hmac
 html
 http
-idlelib             kurt.kaiser
+idlelib             kbk
 imaplib
 imghdr
 imp
