ash testsuite: update some of variable tests with newer versions from hush

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
diff --git a/shell/ash_test/ash-vars/var_bash5.right b/shell/ash_test/ash-vars/var_bash5.right
index 278ed32..1990902 100644
--- a/shell/ash_test/ash-vars/var_bash5.right
+++ b/shell/ash_test/ash-vars/var_bash5.right
@@ -1,4 +1,11 @@
-a/
-a/d
-a/e/f
+1 a/
+2 a/d
+3 a/e/f
+4 a\
+5 a\d
+6 a\e\f
+7 a\\
+8 a\\d
+9 a\\e\\f
+a ab
 Done: 0