DeliveryConfirmationsDialog: small fixes

Elwig/Documents/Pdf.cs

@@ -50,7 +50,7 @@ namespace Elwig.Documents {
                     progress?.Report(parts[0] / (double)parts[1]);
                 } else if (line.StartsWith("success:")) {
                     var m = Regex.Match(line, @"\(([0-9, ]+)\)");
-                    return m.Groups[1].Value.Split(", ").Select(n => int.Parse(n));
+                    return m.Groups[1].Value.Split(", ").Select(int.Parse);
                 }
             }
         }