Add missing newline

lib/cron.php

@@ -56,7 +56,7 @@ function noblogs_run_cron_for_current_blog() {
   if ($has_unsafe_hooks) {
     $blog_details = get_blog_details(null, false);
     $domain = $blog_details->domain;
-    echo "  executing wp-cli for unsafe hooks ({$domain})";
+    echo "  executing wp-cli for unsafe hooks ({$domain})\n";
     system("wp cron event run --due-now --url={$domain}");
   }
 }