Updates trashman: 76dc947 Fix: trashman: signal: documentation reference

diff --git a/trashman b/trashman
index 3f0d45344d32d0c4096a0b7d4b4f7289eb861fb7..76dc9472cccc726e35a7a2f1c9d87f7124a0a3f4 160000 (submodule)
--- a/trashman
+++ b/trashman
@@ -1 +1 @@
-Subproject commit 3f0d45344d32d0c4096a0b7d4b4f7289eb861fb7
+Subproject commit 76dc9472cccc726e35a7a2f1c9d87f7124a0a3f4