fix pr nits

src/Avalonia.Controls/Button.cs

@@ -251,7 +251,6 @@ namespace Avalonia.Controls
                 IsPressed = false;
                 e.Handled = true;
 
-                //only renderer (hittesting) know better whether pointer is over the bounds of the button
                 if (ClickMode == ClickMode.Release && 
                     (IsPointerOver || new Rect(Bounds.Size).Contains(e.GetPosition(this))))
                 {

tests/Avalonia.Controls.UnitTests/ButtonTests.cs

@@ -96,7 +96,7 @@ namespace Avalonia.Controls.UnitTests
         }
 
         [Fact]
-        public void Button_Is_Raising_Click()
+        public void Button_Raises_Click()
         {
             var mouse = Mock.Of<IMouseDevice>();
             IInputElement captured = null;
@@ -124,7 +124,7 @@ namespace Avalonia.Controls.UnitTests
         }
 
         [Fact]
-        public void Button_Is_Not_Raising_Click_When_PointerReleased_Outside()
+        public void Button_Does_Not_Raise_Click_When_PointerReleased_Outside()
         {
             var mouse = Mock.Of<IMouseDevice>();
             IInputElement captured = null;
@@ -153,7 +153,7 @@ namespace Avalonia.Controls.UnitTests
         }
 
         [Fact]
-        public void Button_With_RenderTransform_Is_Raising_Click()
+        public void Button_With_RenderTransform_Raises_Click()
         {
             var mouse = Mock.Of<IMouseDevice>();
             IInputElement captured = null;