dns: fix compiler warning and comment
int g_sock4 = -1;
int g_sock6 = -1;
-/* A simple ring buffer for DNS proxy requests. */
+/* A simple ring buffer for DNS proxy. */
unsigned short proxy_entries_id[16] = {0};
-IP proxy_entries_addr[16] = {0};
+IP proxy_entries_addr[16] = {{0}};
unsigned proxy_entries_count = 0;
/*
