Fix deprecating warning introduced in r72446.

Use wxVScrolledWindow::ScrollToRow() instead of the old and ambiguous
ScrollToLine() which is only preserved for compatibility reasons.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@72457 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/richtext/richtextstyles.cpp

@@ -709,7 +709,7 @@ int wxRichTextStyleListBox::SetStyleSelection(const wxString& name)
     {
         SetSelection(i);
         if (!IsVisible(i))
-            ScrollToLine(i);
+            ScrollToRow(i);
     }
     return i;
 }