Update lib submodule

diff --git a/rpp-lib b/rpp-lib
index 3494981f36c5c8f569190aa5a82c72ee2377151b..012aa8ac0e5f19caee8673750c1e7a0a9523c845 160000 (submodule)
--- a/rpp-lib
+++ b/rpp-lib
@@ -1 +1 @@
-Subproject commit 3494981f36c5c8f569190aa5a82c72ee2377151b
+Subproject commit 012aa8ac0e5f19caee8673750c1e7a0a9523c845