ListProjects: print projects list using secondary index

Render the list of projects to OutputStream leveraging the
projects secondary index instead of relying on the in-memory cache.

Change-Id: I864e1c3cd63b206c0f9dc76bbaa6de99ddfdc0d4

java/com/google/gerrit/sshd/commands/ListProjectsCommand.java

@@ -41,6 +41,6 @@ public class ListProjectsCommand extends SshCommand {
         throw die("--tree and --description options are not compatible.");
       }
     }
-    impl.display(out);
+    impl.displayToStream(out);
   }
 }