[7.8] chore(NA): fix grunt task for test:coverage (#72539)#72609

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mistic merged 1 commit intoelastic:7.8from mistic:backport/7.8/pr-72539

Jul 21, 2020

+1-1

Commits on Jul 21, 2020

chore(NA): fix grunt task for test:coverage (elastic#72539 )
mistic
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