Simplifies git clone logic
Simplifies git clone logic

Don't clone if running as the user "vagrant", since we can assume the
project directory will be mounted inside the VM/container.

freedomofpress/fingerprint-securedrop,freedomofpress/FingerprintSecureDrop,freedomofpress/fingerprint-securedrop,freedomofpress/FingerprintSecureDrop,freedomofpress/fingerprint-securedrop