removed trailing whitespace in Doxygen files

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@52634 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

interface/module.h

@@ -101,7 +101,7 @@ public:
         of the module needed by CLASSINFO(), however errors are
         not detected until run-time, instead of compile-time, then.
         Note that circular dependencies are detected and result in a fatal error.
-        
+
         @param dep
             The class information object for the dependent module.
         @param classname