hush: reinstate hush_test, add testcases for process subst
diff --git a/shell/hush_test/hush-parsing/noeol.right b/shell/hush_test/hush-parsing/noeol.right
new file mode 100644
index 0000000..e427984
--- /dev/null
+++ b/shell/hush_test/hush-parsing/noeol.right
@@ -0,0 +1 @@
+HELLO