Fixes issue that causes linter to fail when file path contains spaces. - #1241

Fixes issue that causes linter to fail when file path contains spaces.#1241

Brett Cannon (brettcannon) merged 5 commits into

microsoft:release-2018.3microsoft/vscode-python:release-2018.3from

DonJayamanne:fixUnnecessaryFileQuotesDonJayamanne/pythonVSCode:fixUnnecessaryFileQuotesCopy head branch name to clipboard