fix out-of-source build of run_tests
fix out-of-source build of run_tests

Change-Id: I42db268545dd44fb56dc6a89f6940e0d28f66ffb
Signed-off-by: Kefu Chai <ef1142690fdf7c5d47bbd7e2a7a410478308cc21@mozy.com>
Reviewed-on: https://gerrit.dechocorp.com/53926
Reviewed-by: Jenkins <49695b0f9c673fd73dab0ff3f84b5ced9302cc6a@mozy.com>
Reviewed-by: Andrew Skowronski <96924f7a4dbe24093bb2da18f50a76703cb4a362@mozy.com>
Reviewed-by: Kevin Cai <c4f49ef5a44534d46de426dda18a118a2ca4debf@mozy.com>

mtanski/mordor,mozy/mordor,mtanski/mordor,mozy/mordor,mozy/mordor,adfin/mordor,mtanski/mordor,adfin/mordor,adfin/mordor