correct extra newline

Reference: /n/sources/patch/applied/dnfmtnit
Date: Tue Mar  9 20:07:00 CET 2010
Signed-off-by: quanstro@quanstro.net

--- /sys/src/cmd/ndb/dnsdebug.c	Tue Mar  9 20:06:55 2010
+++ /sys/src/cmd/ndb/dnsdebug.c	Tue Mar  9 20:06:54 2010
@@ -144,7 +144,7 @@
 		rrname(rp->type, buf, sizeof buf));
 
 	if(rp->negative){
-		seprint(p, e, "negative rcode %d\n", rp->negrcode);
+		seprint(p, e, "negative rcode %d", rp->negrcode);
 		goto out;
 	}