renamed function

ArduCopter/commands_process.pde

@@ -137,7 +137,7 @@ static void execute_nav_command(void)
 		Log_Write_Cmd(g.command_index, &command_nav_queue);
 
 	// clear navigation prameters
-	reset_nav();
+	reset_nav_params();
 
 	// Act on the new command
 	process_nav_command();