#18128: use standard +NNNN timezone format in POT-Creation-Date header.

Patch by Michael McFadden, with a few small style tweaks.
diff --git a/Misc/ACKS b/Misc/ACKS
index 3d4b2cc..2ebaa9b 100644
--- a/Misc/ACKS
+++ b/Misc/ACKS
@@ -911,6 +911,7 @@
 Rebecca McCreary
 Kirk McDonald
 Chris McDonough
+Michael McFadden
 Greg McFarlane
 Alan McIntyre
 Jessica McKellar
diff --git a/Misc/NEWS b/Misc/NEWS
index 3ba17a4..b8d0c2e 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -187,6 +187,9 @@
 Tools/Demos
 -----------
 
+- Issue #18128: pygettext now uses standard +NNNN format in the
+  POT-Creation-Date header.
+
 - Issue #23935: Argument Clinic's understanding of format units
   accepting bytes, bytearrays, and buffers is now consistent with
   both the documentation and the implementation.