No changes whatsoever, just remove trailing whitespace.

There are no real changes in this commit but it removes all trailing white
space from our source files. This avoids problems when applying patches and
making diffs and it would be nice to prevent it from reappearing.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@65680 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

samples/help/demo.cpp

@@ -461,10 +461,10 @@ MyFrame::MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size)
     m_embeddedHelpWindow = new wxHtmlHelpWindow;
     // m_embeddedHtmlHelp.UseConfig(config, rootPath); // Can set your own config object here
     m_embeddedHtmlHelp.SetHelpWindow(m_embeddedHelpWindow);
-    
+
     m_embeddedHelpWindow->Create(this,
         wxID_ANY, wxDefaultPosition, GetClientSize(), wxTAB_TRAVERSAL|wxNO_BORDER, wxHF_DEFAULT_STYLE);
-        
+
     m_embeddedHtmlHelp.AddBook(wxFileName(wxT("doc.zip")));
     m_embeddedHtmlHelp.Display(wxT("Introduction"));
 #else