usage: allow pluggable die-recursion checks

diff --git a/RelNotes b/RelNotes
index dfc0e738d9198a8b9a85ed3c8b1f621f71b32f25..4f1d2cb9a91cb4dd41af193c68ab3958f7736d97 120000 (symlink)
--- a/RelNotes
+++ b/RelNotes
@@ -1 +1 @@
-Documentation/RelNotes/1.7.8.5.txt
\ No newline at end of file
+Documentation/RelNotes/1.8.1.6.txt
\ No newline at end of file