Temporary fix testtols version to unblock gate

Gate is broken now due to the bug 1274056

Logstash:
http://logstash.openstack.org/#eyJzZWFyY2giOiJtZXNzYWdlOiBcIkltcG9ydEVycm9yOiBjYW5ub3QgaW1wb3J0IG5hbWUgYWxsXCIiLCJmaWVsZHMiOltdLCJvZmZzZXQiOjAsInRpbWVmcmFtZSI6IjkwMCIsImdyYXBobW9kZSI6ImNvdW50IiwidGltZSI6eyJ1c2VyX2ludGVydmFsIjowfSwic3RhbXAiOjEzOTA5OTMwMjU5MDF9

Change-Id: I61a673c7037be05456d227bcd2366c77f23b7551