control-spec: Mention IP_NOW_REDUNDANT circuit close reason.

b4181555 · Nick Mathewson · 693f5d44 · b4181555
Commit b4181555 authored 4 years ago by Nick Mathewson
--- a/control-spec.txt
+++ b/control-spec.txt
@@ -2233,6 +2233,9 @@
      MEASUREMENT_EXPIRED (As "TIMEOUT", except that we had left the circuit
                           open for measurement purposes to see how long it
                           would take to finish.)
+      IP_NOW_REDUNDANT    (Closing a circuit to an introduction point that
+                           has become redundant, since some other circuit
+                           opened in parallel with it has succeeded.)

   The "REMOTE_REASON" field is provided only when we receive a DESTROY or
   TRUNCATE cell, and only if extended events are enabled.  It contains the