Cast pointers used with %p format strings to void *

tests/dynamic_code_loading/dyncode_demand_alloc_test.c

Index: tests/dynamic_code_loading/dyncode_demand_alloc_test.c
diff --git a/tests/dynamic_code_loading/dyncode_demand_alloc_test.c b/tests/dynamic_code_loading/dyncode_demand_alloc_test.c
index bc8b609d323b48039c8c9dfb8a4a8f59e9fab19c..f892530fe959a208220d83d62c571533a8a4c89b 100644
--- a/tests/dynamic_code_loading/dyncode_demand_alloc_test.c
+++ b/tests/dynamic_code_loading/dyncode_demand_alloc_test.c
@@ -38,7 +38,7 @@ void load_into_page(uint8_t *dest) {
   /* Check that the whole page is correctly filled with halts. */
   for (ptr = dest; ptr < dest + DYNAMIC_CODE_PAGE_SIZE; ptr += sizeof(halts)) {
     if (memcmp(ptr, &halts, sizeof(halts)) != 0) {
-      fprintf(stderr, "Mismatch at %p\n", ptr);
+      fprintf(stderr, "Mismatch at %p\n", (void *) ptr);
       exit(1);
     }
   }