update cyrus-sasl, again.

diff --git a/cyrus-sasl b/cyrus-sasl
index 5e3317c..0602ff8 160000 (submodule)
--- a/cyrus-sasl
+++ b/cyrus-sasl
@@ -1 +1 @@
-Subproject commit 5e3317cb5a547b66d8a9b7750fbea11aee4d6e4b
+Subproject commit 0602ff8c14004db4a8b3bbd7f424975d0001662e