Acceptable diff: Footer and non-visible details

 - Legacy-Id: 462

Author: levkowetz

test/diff/_idtracker_

@@ -0,0 +1,11 @@
+--- https://datatracker.ietf.org/public/pidtracker.cgi 
++++ /idtracker/ 
+@@ -68,1 +68,1 @@
+-None
++--All Substates
+@@ -73,1 +73,0 @@
+---All Substates
+@@ -86,3 +85,0 @@
+-Did you find a bug? Let us know.
+-Any question or suggestion?
+-This page produced by the IETF Secretariat for the IESG