ash: add most of hush process subst tests

ash passes these.

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
diff --git a/shell/ash_test/ash-psubst/tick_huge.right b/shell/ash_test/ash-psubst/tick_huge.right
new file mode 100644
index 0000000..11740f6
--- /dev/null
+++ b/shell/ash_test/ash-psubst/tick_huge.right
@@ -0,0 +1,3 @@
+546ed3f5c81c780d3ab86ada14824237  -
+546ed3f5c81c780d3ab86ada14824237  -
+End