fix spell erro and change notations

src/modules/Hosts/Hosts.FuzzTests/FuzzTests.cs

@@ -76,11 +76,11 @@ public static void FuzzWriteAsync(ReadOnlySpan<byte> data)
                 _elevationHelper = new Mock<IElevationHelper>();
                 _elevationHelper.Setup(m => m.IsElevated).Returns(true);
 
-                // cause no content parse process in writeasync we won't fuzz content in hosts file.
                 var fileSystem = new CustomMockFileSystem();
                 var service = new HostsService(fileSystem, _userSettings.Object, _elevationHelper.Object);
 
                 string input = System.Text.Encoding.UTF8.GetString(data);
+                // Since the WriteAsync method does not involve content parsing, we won't fuzz the additionalLines in the hosts file.
                 string additionalLines = " ";
                 if (input.Length <= 2)
                 {