engine: always include reason to server shutdown

engine/server/sv_cmds.c

@@ -846,7 +846,7 @@ Kick everyone off, possibly in preparation for a new game
 */
 static void SV_KillServer_f( void )
 {
-	Host_ShutdownServer();
+	SV_Shutdown( "Server was killed due to shutdownserver command\n" );
 }
 
 /*

engine/server/sv_init.c

@@ -805,7 +805,8 @@ static void SV_SetupClients( void )
 	if( !changed_maxclients ) return; // nothing to change
 
 	// if clients count was changed we need to run full shutdown procedure
-	if( svs.maxclients ) Host_ShutdownServer();
+	if( svs.maxclients )
+		SV_Shutdown( "Server was killed due to maxclients change\n" );
 
 	// copy the actual value from cvar
 	svs.maxclients = (int)sv_maxclients.value;