Review Request 28303: Silence symbolic link to pre-commit in bootstrap

[Cody Maloney]

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Review request for mesos, Niklas Nielsen and Vinod Kone.


Bugs: MESOS-1960
    https://issues.apache.org/jira/browse/MESOS-1960


Repository: mesos-git


Description
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Fixes MESOS-1960


Diffs
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  bootstrap 12944e75a4a4effb7448af7e4096caec5a8db79d 

Diff: https://reviews.apache.org/r/28303/diff/


Testing
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./bootstrap
./bootstrap 2>&1 | grep 'ln'


Thanks,

Cody Maloney