[kajusnau]

Small change to only import SSH_AUTH_SOCK when it is set
Removes the somewhat confusing ...$SSH_AUTH_SOCK not set... print to tty1 during greeter handoff

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[joshuamegnauth54]

Closes: #242

I didn't notice your patch. I opened a similar fix in #244 but I think both of our patches serve different purposes so they're both viable. Your fix is very clean, so I prefer it as a fix to #242. 😁