Removed double "sorted" in print

skeleton/skeleton.c

@@ -49,7 +49,7 @@ int main(int argc, char **argv) {
     if (is_sorted(size, res)) {
         printf("The result is sorted\n");
     } else {
-        printf("The result is not sorted sorted\n");
+        printf("The result is not sorted\n");
         return EXIT_FAILURE;
     }
     return EXIT_SUCCESS;