Update perkamon to LDP v3.78

diff --git a/perkamon b/perkamon
index ca8baf2..1e1db80 160000 (submodule)
--- a/perkamon
+++ b/perkamon
@@ -1 +1 @@
-Subproject commit ca8baf253bd51dab9e4c6c924002fcce3b8d7a4f
+Subproject commit 1e1db8050df63f96dd50f70ee283c0a62b969d61