Close #19406: Initial implementation of ensurepip

Patch by Donald Stufft and Nick Coghlan
diff --git a/Misc/ACKS b/Misc/ACKS
index 5038eeb..34fac02 100644
--- a/Misc/ACKS
+++ b/Misc/ACKS
@@ -1244,6 +1244,7 @@
 Serhiy Storchaka
 Ken Stox
 Dan Stromberg
+Donald Stufft
 Daniel Stutzbach
 Andreas Stührk
 Colin Su
diff --git a/Misc/NEWS b/Misc/NEWS
index 563c7fe..0b97d23 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -34,6 +34,9 @@
 Library
 -------
 
+- Issue #19406: implementation of the ensurepip module (part of PEP 453).
+  Patch by Donald Stufft and Nick Coghlan.
+
 - Issue #19544 and Issue #6286: Restore use of urllib over http allowing use
   of http_proxy for Distutils upload command, a feature accidentally lost
   in the rollback of distutils2.