Updates ratpoison: c83cdc8 Run firefox on private window

diff --git a/modules/ratpoison b/modules/ratpoison
index c527b4e3b5b16b48cc00e737fa0fba365723dccf..c83cdc853c7a625f414aada5b12cbabc135a3729 160000 (submodule)
--- a/modules/ratpoison
+++ b/modules/ratpoison
@@ -1 +1 @@
-Subproject commit c527b4e3b5b16b48cc00e737fa0fba365723dccf
+Subproject commit c83cdc853c7a625f414aada5b12cbabc135a3729