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/dialogs/dialogs.cpp

@@ -809,7 +809,7 @@ void MyFrame::MessageBox(wxCommandEvent& WXUNUSED(event))
                            wxCENTER |
                            wxNO_DEFAULT | wxYES_NO | wxCANCEL |
                            wxICON_INFORMATION);
-    
+
     wxString extmsg;
     if ( dialog.SetYesNoCancelLabels
         (
@@ -827,21 +827,21 @@ void MyFrame::MessageBox(wxCommandEvent& WXUNUSED(event))
         "so the default \"Yes\"/\"No\"/\"Cancel\" buttons are used.";
     }
     dialog.SetExtendedMessage(extmsg);
-    
+
     switch ( dialog.ShowModal() )
     {
         case wxID_YES:
             wxLogStatus(wxT("You pressed \"Yes\""));
             break;
-            
+
         case wxID_NO:
             wxLogStatus(wxT("You pressed \"No\""));
             break;
-            
+
         case wxID_CANCEL:
             wxLogStatus(wxT("You pressed \"Cancel\""));
             break;
-            
+
         default:
             wxLogError(wxT("Unexpected wxMessageDialog return code!"));
     }
@@ -2695,7 +2695,7 @@ bool TestMessageBoxDialog::Create()
     };
 
    wxCOMPILE_TIME_ASSERT( WXSIZEOF(icons) == MsgDlgIcon_Max, IconMismatch );
-   
+
     m_icons = new wxRadioBox(this, wxID_ANY, "&Icon style",
                              wxDefaultPosition, wxDefaultSize,
                              WXSIZEOF(icons), icons,