Make testSubprocessPlatfomOptionsPreSpawnProcessConfigurator more robust#75

iCharlesHu merged 1 commit intomainswiftlang/swift-subprocess:mainfrom

eng/PR-fix-testSubprocessPlatfomOptionsPreSpawnProcessConfiguratorswiftlang/swift-subprocess:eng/PR-fix-testSubprocessPlatfomOptionsPreSpawnProcessConfiguratorCopy head branch name to clipboard