Update JUSH

diff --git a/externals/jush b/externals/jush
index db9f905487bbd0049f9a20a66bbb35891f0b6d52..5fa4d1f97e7c4c5e76149088925b9dbd3c651a53 160000 (submodule)
--- a/externals/jush
+++ b/externals/jush
@@ -1 +1 @@
-Subproject commit db9f905487bbd0049f9a20a66bbb35891f0b6d52
+Subproject commit 5fa4d1f97e7c4c5e76149088925b9dbd3c651a53