Updates borger: a8f3112 Avoid too many loops

diff --git a/borger b/borger
index 7da315d06d515a7d666f7b36bd6ed37f377f75c3..a8f3112b4066a7bcad5e80ec658704baf5ca9e4d 160000 (submodule)
--- a/borger
+++ b/borger
@@ -1 +1 @@
-Subproject commit 7da315d06d515a7d666f7b36bd6ed37f377f75c3
+Subproject commit a8f3112b4066a7bcad5e80ec658704baf5ca9e4d