--- ./nntp.c.orig	2017-01-04 15:03:32.235592431 -0600
+++ ./nntp.c	2017-01-04 15:06:09.724603794 -0600
@@ -918,7 +918,7 @@
     if ((hp = gethostbyname(nntp_server)) != NULL)
 	server_real_name = hp->h_name;
     else
-	nn_exitmsg(1, "NNTPSERVER is invalid");
+        nn_exitmsg(1, "NNTP host is invalid -- please edit /etc/nntpserver");
 #ifdef USE_SPOOL
     use_nntp = (strcasecmp(host, server_real_name) != 0);
 #else /* USE_SPOOL */