Fixed a bug in test filter that prevent some tests from being launched.
Fixed a bug in test filter that prevent some tests from being launched.

Review: https://reviews.apache.org/r/35671

neilconway/mesos,dforsyth/mesos,gsantovena/mesos,andschwa/mesos,kaysoky/mesos,gsantovena/mesos,asamerh4/mesos,reneploetz/mesos,yuquanshan/customizedMesos,dforsyth/mesos,chhsia0/mesos,andschwa/mesos,neilconway/mesos,yuquanshan/customizedMesos,zmalik/mesos,gsantovena/mesos,jpeach/mesos,craimbert/mesos,andschwa/mesos,dforsyth/mesos,Gilbert88/mesos,abudnik/mesos,verizonlabs/mesos,reneploetz/mesos,verizonlabs/mesos,neilconway/mesos,jpeach/mesos,reneploetz/mesos,asamerh4/mesos,kaysoky/mesos,Gilbert88/mesos,abudnik/mesos,asamerh4/mesos,gsantovena/mesos,neilconway/mesos,verizonlabs/mesos,jpeach/mesos,zmalik/mesos,Gilbert88/mesos,andschwa/mesos,zmalik/mesos,craimbert/mesos,andschwa/mesos,gsantovena/mesos,verizonlabs/mesos,verizonlabs/mesos,Aman-Jain-14/customizedMesos,chhsia0/mesos,yuquanshan/customizedMesos,craimbert/mesos,gsantovena/mesos,gsantovena/mesos,yuquanshan/customizedMesos,dforsyth/mesos,craimbert/mesos,craimbert/mesos,yuquanshan/customizedMesos,neilconway/mesos,Aman-Jain-14/customizedMesos,yuquanshan/customizedMesos,abudnik/mesos,dforsyth/mesos,abudnik/mesos,zmalik/mesos,chhsia0/mesos,chhsia0/mesos,chhsia0/mesos,Aman-Jain-14/customizedMesos,neilconway/mesos,jpeach/mesos,abudnik/mesos,kaysoky/mesos,Aman-Jain-14/customizedMesos,asamerh4/mesos,yuquanshan/customizedMesos,reneploetz/mesos,kaysoky/mesos,chhsia0/mesos,Aman-Jain-14/customizedMesos,asamerh4/mesos,kaysoky/mesos,Aman-Jain-14/customizedMesos,jpeach/mesos,asamerh4/mesos,kaysoky/mesos,abudnik/mesos,verizonlabs/mesos,jpeach/mesos,reneploetz/mesos,Gilbert88/mesos,kaysoky/mesos,Gilbert88/mesos,dforsyth/mesos,craimbert/mesos,dforsyth/mesos,andschwa/mesos,Aman-Jain-14/customizedMesos,Gilbert88/mesos,neilconway/mesos,zmalik/mesos,andschwa/mesos,zmalik/mesos,jpeach/mesos,abudnik/mesos,asamerh4/mesos,reneploetz/mesos,verizonlabs/mesos,Gilbert88/mesos,chhsia0/mesos,craimbert/mesos,zmalik/mesos,reneploetz/mesos