Updates ratpoison: 8237c3e Fix startup_message config, again

diff --git a/modules/ratpoison b/modules/ratpoison
index 6008a0267143ae89ccdb481943f8e57bfb0970f0..8237c3ec52353dee22ea81b24082f8b7490c63d7 160000 (submodule)
--- a/modules/ratpoison
+++ b/modules/ratpoison
@@ -1 +1 @@
-Subproject commit 6008a0267143ae89ccdb481943f8e57bfb0970f0
+Subproject commit 8237c3ec52353dee22ea81b24082f8b7490c63d7