Wait for extraction to finish before reporting a download install complete - #1009

Wait for extraction to finish before reporting a download install complete#1009

X-Guardian wants to merge 2 commits into

mapbox:mastermapbox/node-pre-gyp:masterfrom

X-Guardian:fix/install-extract-raceX-Guardian/node-pre-gyp:fix/install-extract-raceCopy head branch name to clipboard