replace @b Note with @note; replace '' with "

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@52960 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

interface/combobox.h

@@ -193,7 +193,7 @@ public:
 
     /**
         Returns the insertion point for the combobox's text field.
-        @b Note: Under wxMSW, this function always returns 0 if the combobox
+        @note Under wxMSW, this function always returns 0 if the combobox
         doesn't have the focus.
     */
     long GetInsertionPoint() const;