testsuite: add some tests for ash

Signed-off-by: Ron Yorston <rmy@pobox.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
diff --git a/shell/ash_test/ash-vars/var-pattern-replacement-in-parameter-expansion-3.right b/shell/ash_test/ash-vars/var-pattern-replacement-in-parameter-expansion-3.right
new file mode 100644
index 0000000..5ea5ff8
--- /dev/null
+++ b/shell/ash_test/ash-vars/var-pattern-replacement-in-parameter-expansion-3.right
@@ -0,0 +1 @@
+axcabc