sh testsuite: sync ash-vars/ and hush-vars/

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
diff --git a/shell/ash_test/ash-vars/var2.tests b/shell/ash_test/ash-vars/var2.tests
index 07feaeb..1292410 100755
--- a/shell/ash_test/ash-vars/var2.tests
+++ b/shell/ash_test/ash-vars/var2.tests
@@ -1 +1,4 @@
-X=usbdev1.2 X=${X#usbdev} B=${X%%.*} D=${X#*.}; echo bus/usb/$B/$D
+_1=http://busybox.net
+
+echo $_1
+echo ${_1}_abc