Swap public and system ID in start_doctype_decl. Fixes #780300.
diff --git a/Misc/NEWS b/Misc/NEWS
index 983c548..809d2d9 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -306,6 +306,9 @@
 Library
 -------
 
+- Bug #780300: Swap public and system ID in LexicalHandler.startDTD.
+  Applications relying on the wrong order need to be corrected.
+
 - Bug #926075: Fixed a bug that returns a wrong pattern object
   for a string or unicode object in sre.compile() when a different
   type pattern with the same value exists.