update magit revision

diff --git a/magit b/magit
index 20f35de..5ed79cb 160000 (submodule)
--- a/magit
+++ b/magit
@@ -1 +1 @@
-Subproject commit 20f35de12717a7c7b236e94b5b8a6ff363a17b91
+Subproject commit 5ed79cb12033a2606ebaea18123e8996f19690ed