Change 0UL to 0L for XXH Config Tests

Signed-off-by: Xen <lordofxen@deskasoft.com>

Author: LordOfXen

HashifyNet.UnitTests/Algorithms/XxHash/XxHashConfig_Tests.cs

@@ -39,7 +39,7 @@ public void XxHashConfig_Defaults_HaventChanged()
 			var xxHashConfigInstance = new XxHashConfig();
 
 			Assert.Equal(32, xxHashConfigInstance.HashSizeInBits);
-			Assert.Equal(0UL, xxHashConfigInstance.Seed);
+			Assert.Equal(0L, xxHashConfigInstance.Seed);
 		}
 
 		[Fact]
@@ -48,7 +48,7 @@ public void XxHashConfig_Clone_Works()
 			var xxHashConfigInstance = new XxHashConfig()
 			{
 				HashSizeInBits = 64,
-				Seed = 1337UL,
+				Seed = 1337L,
 			};
 
 			var xxHashConfigClone = xxHashConfigInstance.Clone();
@@ -59,4 +59,4 @@ public void XxHashConfig_Clone_Works()
 			Assert.Equal(xxHashConfigInstance.Seed, xxHashConfigClone.Seed);
 		}
 	}
-}
+}