Launcher: Shorten long url inside app instance tooltip

Change-Id: If80b8a4a519745101056e34c3535543a6c8a78d2
diff --git a/core/installer/cmd/launcher.go b/core/installer/cmd/launcher.go
index e1707bf..6a8ced5 100644
--- a/core/installer/cmd/launcher.go
+++ b/core/installer/cmd/launcher.go
@@ -14,7 +14,7 @@
 )
 
 var launcherFlags struct {
-	logoutUrl string
+	logoutURL string
 	port      int
 	repoAddr  string
 	sshKey    string
@@ -32,7 +32,7 @@
 		"",
 	)
 	cmd.Flags().StringVar(
-		&launcherFlags.logoutUrl,
+		&launcherFlags.logoutURL,
 		"logout-url",
 		"",
 		"",
@@ -80,7 +80,7 @@
 	}
 	s, err := welcome.NewLauncherServer(
 		launcherFlags.port,
-		launcherFlags.logoutUrl,
+		launcherFlags.logoutURL,
 		&welcome.AppManagerDirectory{AppManager: appManager},
 	)
 	if err != nil {