1 files changed, 9 insertions, 3 deletions
diff --git a/RSSDP/IEnumerableExtensions.cs b/RSSDP/IEnumerableExtensions.cs
index c96542dca..1f0daad3e 100644
--- a/RSSDP/IEnumerableExtensions.cs
+++ b/RSSDP/IEnumerableExtensions.cs
@@ -1,7 +1,6 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
-using System.Text;
 
 namespace Rssdp.Infrastructure
 {
@@ -9,8 +8,15 @@ namespace Rssdp.Infrastructure
     {
         public static IEnumerable<T> SelectManyRecursive<T>(this IEnumerable<T> source, Func<T, IEnumerable<T>> selector)
         {
-            if (source == null) throw new ArgumentNullException(nameof(source));
-            if (selector == null) throw new ArgumentNullException(nameof(selector));
+            if (source == null)
+            {
+                throw new ArgumentNullException(nameof(source));
+            }
+
+            if (selector == null)
+            {
+                throw new ArgumentNullException(nameof(selector));
+            }
 
             return !source.Any() ? source :
                 source.Concat(