Applied patch #420395 (adding wxCLIP_SIBBLINGS capability -- but not by default)

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@10171 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/msw/listbox.cpp

@@ -160,6 +160,8 @@ bool wxListBox::Create(wxWindow *parent,
 
     wxASSERT_MSG( !(style & wxLB_MULTIPLE) || !(style & wxLB_EXTENDED),
                   _T("only one of listbox selection modes can be specified") );
+    if ( m_windowStyle & wxCLIP_SIBLINGS )
+        wstyle |= WS_CLIPSIBLINGS;
 
     if (m_windowStyle & wxLB_MULTIPLE)
         wstyle |= LBS_MULTIPLESEL;