Update MentOs code to the latest development version.

programs/tests/t_mem.c

@@ -0,0 +1,26 @@
+///                MentOS, The Mentoring Operating system project
+/// @file t_mem.c
+/// @brief
+/// @copyright (c) 2014-2021 This file is distributed under the MIT License.
+/// See LICENSE.md for details.
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/unistd.h>
+#include <sys/wait.h>
+
+int main(int argc, char *argv[])
+{
+    if (argc != 2) {
+        return 1;
+    }
+    char *ptr;
+    int N = strtol(argv[1], &ptr, 10), *V;
+    for (int i = 0; i < N; ++i) {
+        for (int j = 1; j < N; ++j) {
+            V = (int *)malloc(j * sizeof(int));
+            free(V);
+        }
+    }
+    return 0;
+}