Seal the type explicitly

Author: RenderMichael

dotnet/src/webdriver/RelativeBy.cs

@@ -29,7 +29,7 @@ namespace OpenQA.Selenium
     /// <summary>
     /// Provides a mechanism for finding elements spatially relative to other elements.
     /// </summary>
-    public class RelativeBy : By
+    public sealed class RelativeBy : By
     {
         private readonly string wrappedAtom;
         private readonly object root;
@@ -70,7 +70,6 @@ public static RelativeBy WithLocator(By by)
             return new RelativeBy(by);
         }
 
-
         /// <summary>
         /// Finds the first element matching the criteria.
         /// </summary>