Review Request: Fixed gtest environment to filter templated tests with a typename that includes 'CgroupsIsolationModule'.

[Ben Mahler]

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https://reviews.apache.org/r/9906/
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Review request for mesos, Benjamin Hindman and Vinod Kone.


Description
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Pulled out of my other review: https://reviews.apache.org/r/9797


Diffs
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  src/tests/environment.cpp e71c2cf9f45f6cd7d7305a11da701042bd6e22c6 

Diff: https://reviews.apache.org/r/9906/diff/


Testing
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Thanks,

Ben Mahler