reverted the change of wxCmdLineEntryDesc fields to wxString as this doesn't compile with VC6; make them const char * instead

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@48693 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/common/appcmn.cpp

@@ -203,7 +203,7 @@ void wxAppBase::OnInitCmdLine(wxCmdLineParser& parser)
 #ifdef __WXUNIVERSAL__
         {
             wxCMD_LINE_OPTION,
-            "",
+            NULL,
             OPTION_THEME,
             gettext_noop("specify the theme to use"),
             wxCMD_LINE_VAL_STRING,
@@ -217,7 +217,7 @@ void wxAppBase::OnInitCmdLine(wxCmdLineParser& parser)
         //     and not mgl/app.cpp
         {
             wxCMD_LINE_OPTION,
-            "",
+            NULL,
             OPTION_MODE,
             gettext_noop("specify display mode to use (e.g. 640x480-16)"),
             wxCMD_LINE_VAL_STRING,
@@ -226,14 +226,7 @@ void wxAppBase::OnInitCmdLine(wxCmdLineParser& parser)
 #endif // __WXMGL__
 
         // terminator
-        {
-            wxCMD_LINE_NONE,
-            "",
-            "",
-            "",
-            wxCMD_LINE_VAL_NONE,
-            0x0
-        }
+        wxCMD_LINE_DESC_END
     };
 
     parser.SetDesc(cmdLineGUIDesc);