Fixed Issue 83:Using TYPE on a zset results in a malformed response from the Redis server

zmalloc.c

@@ -42,7 +42,7 @@
 static size_t used_memory = 0;
 
 static void zmalloc_oom(size_t size) {
-    fprintf(stderr, "zmalloc: Out of memory trying to allocate %lu bytes\n",
+    fprintf(stderr, "zmalloc: Out of memory trying to allocate %zu bytes\n",
         size);
     fflush(stderr);
     abort();