Pull in latest buildrump.sh

diff --git a/buildrump.sh b/buildrump.sh
index 94c092b906e348acd512744536d28e4f06e4c1ef..e8eb61896d1f68884b9c39b61e7e1ddb41e90c0b 160000 (submodule)
--- a/buildrump.sh
+++ b/buildrump.sh
@@ -1 +1 @@
-Subproject commit 94c092b906e348acd512744536d28e4f06e4c1ef
+Subproject commit e8eb61896d1f68884b9c39b61e7e1ddb41e90c0b