DisplayMotd: Adjust to changed signature of CurrentUser#getUserName

The method now returns Optional<String>.

Change-Id: I1d0719b49df042d6f35892ed29275a323b8c1626
1 file changed
tree: ffaaf7fb68b0dd6cb0421d04f3a37e0c59f8fda8
  1. src/
  2. .gitignore
  3. BUCK
  4. BUILD
  5. LICENSE