hush_test: test for subshell function syntax

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
diff --git a/shell/hush_test/hush-misc/func5.right b/shell/hush_test/hush-misc/func5.right
new file mode 100644
index 0000000..01e79c3
--- /dev/null
+++ b/shell/hush_test/hush-misc/func5.right
@@ -0,0 +1,3 @@
+1
+2
+3