clean: remove debug print

src/main.c

@@ -149,7 +149,6 @@ void signal_handler(int code)
 
 char *dns_lookup(const char *hostname)
 {
-    printf("%s\n",hostname);
     char *ipstr = malloc(sizeof(char) * INET_ADDRSTRLEN);
     if (ipstr == NULL)
         return NULL;