use GetLabelText() instead of wxStripMenuCodes() to avoid stripping the part of the string after TAB

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@40331 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/msw/radiobox.cpp

@@ -495,7 +495,7 @@ wxSize wxRadioBox::GetTotalButtonSize(const wxSize& sizeBtn) const
 
     // and also wide enough for its label
     int widthLabel;
-    GetTextExtent(wxStripMenuCodes(GetLabel()), &widthLabel, NULL);
+    GetTextExtent(GetLabelText(), &widthLabel, NULL);
     widthLabel += RADIO_SIZE; // FIXME this is bogus too
     if ( widthLabel > width )
         width = widthLabel;