Update appcustomvar.h

Author: LinuxUsersLinuxMint

CAppDevKitLib/appcustomvar.h

@@ -10,8 +10,8 @@ typedef const char *app_name;
 typedef const char *app_developer_name;
 typedef const char *app_developer_website;
 
-// typedef void customv
+// typedef void custom
 
 typedef void app_func;
 
-#endif
+#endif