Update template script for svc.sh to account for an empty ~/Library/LaunchAgents folder. (#1864)
Update template script for svc.sh to account for an empty ~/Library/LaunchAgents folder. (#1864)

This folder doesn't seem to exist by default in macOS 10.13, so instead of erroring out, we should create it.
Microsoft/vsts-agent,Microsoft/vsts-agent,Microsoft/vsts-agent,Microsoft/vsts-agent