* Sys_Dialog for more user friendly error reporting

* (bug #3932) Recovery from bad video settings

code/null/null_client.c

@@ -25,7 +25,7 @@ Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 
 cvar_t *cl_shownet;
 
-void CL_Shutdown( void ) {
+void CL_Shutdown( char *finalmsg ) {
 }
 
 void CL_Init( void ) {