Update perldelta_template.pod to include an "Errata From Previous Releases" section

I added this section to the latest perldelta, and Dave M pointed out
that it should become a standard section in the future, so I have added
it to the perldelta_template.pod

diff --git a/Porting/perldelta_template.pod b/Porting/perldelta_template.pod
index 6b4336f..626e2f0 100644 (file)
--- a/Porting/perldelta_template.pod
+++ b/Porting/perldelta_template.pod
@@ -358,6 +358,17 @@ XXX
 
 =back
 
+=head1 Errata From Previous Releases
+
+=over 4
+
+=item *
+
+XXX Add anything here that we forgot to add, or were mistaken about, in
+the perldelta of a previous release.
+
+=back
+
 =head1 Obituary
 
 XXX If any significant core contributor has died, we've added a short obituary