ash: extend var_bash4.tests; nocode changes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
diff --git a/shell/ash_test/ash-vars/var_bash4.tests b/shell/ash_test/ash-vars/var_bash4.tests
index 304b3d9..3b323c5 100755
--- a/shell/ash_test/ash-vars/var_bash4.tests
+++ b/shell/ash_test/ash-vars/var_bash4.tests
@@ -1,3 +1,6 @@
 FOO='a*b\*c'
-echo "${FOO//\\*/-backslashstar-}"
+BAR=${FOO//\\*/-backslashstar-}
+echo In assignment: "$BAR"
+echo Unquoted: ${FOO//\\*/-backslashstar-}
+echo Quoted: "${FOO//\\*/-backslashstar-}"
 echo Done: $?