[9] Request for review: 8041740: Test sun/security/tools/keytool/ListKeychainStore.sh fails on Mac

[Vincent Ryan]

Please review this fix to a test for KeychainStore keystores on Mac OSX.
It adjusts the keychain search order to include the temporary keychain created 
by this test.

Bug: https://bugs.openjdk.java.net/browse/JDK-8041740
Webber: http://cr.openjdk.java.net/~vinnie/8041740/webrev.00/

Thanks.