[Snyk] Upgrade shelljs from 0.7.8 to 0.8.3#2

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snyk-bot wants to merge 1 commit intomasterfrom snyk-upgrade-962bb9712af14d681db8a813d7de93e5

+38-7

Commits on Aug 29, 2019

chore: upgrade shelljs from 0.7.8 to 0.8.3
snyk-test
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