Added checking for preventing calling system() on empty command string

source/ubl-settings-system.c

@@ -6,7 +6,8 @@ config main_config;
 
 void yon_load_proceed(YON_CONFIG_TYPE type){
     	yon_config_clean();
-	yon_config_load_config(YON_CONFIG_DEFAULT,config_get_default_command,NULL);
+    if (!yon_char_is_empty(config_get_default_command))
+        yon_config_load_config(YON_CONFIG_DEFAULT,config_get_default_command,NULL);
     if (type==YON_CONFIG_GLOBAL){
 		yon_config_load_config(type,config_get_global_command,NULL);
 	}

source/ubl-settings-system.h

@@ -39,7 +39,7 @@
 
 #define config_get_local_command "ubconfig --source system get system HOSTNAME MACHINEID", "ubconfig --source system get locale CONSOLE_FONT LOCALE LANG"
 #define config_get_global_command "ubconfig --source global get system HOSTNAME MACHINEID", "ubconfig --source global get locale CONSOLE_FONT LOCALE LANG"
-#define config_get_default_command "ubconfig --source default get "
+#define config_get_default_command ""
 
 #define config_get_global_only_parameters ""
 #define config_get_local_only_parameters ""