Fail() - minor consistency improvements

Author: space-alien

CSharpFunctionalExtensions/Result/Methods/Fail.cs

@@ -13,13 +13,13 @@ public static Result Fail(string error)
         [DebuggerStepThrough]
         public static Result<T> Fail<T>(string error)
         {
-            return new Result<T>(true, default(T), error);
+            return new Result<T>(true, default, error);
         }
 
         [DebuggerStepThrough]
         public static Result<T, E> Fail<T, E>(E error)
         {
-            return new Result<T, E>(true, default(T), error);
+            return new Result<T, E>(true, default, error);
         }
     }
 }