Update JUSH

diff --git a/externals/jush b/externals/jush
index d9a8b6d1ddaacde4cefbae05b770b0917be4ac4a..2fc17d563d5601e993cee5d928389b5671a8a9ca 160000 (submodule)
--- a/externals/jush
+++ b/externals/jush
@@ -1 +1 @@
-Subproject commit d9a8b6d1ddaacde4cefbae05b770b0917be4ac4a
+Subproject commit 2fc17d563d5601e993cee5d928389b5671a8a9ca