3871 fix issues introduced by 3604

Reviewed by: Paul Dagnelie <pcd@delphix.com>
Reviewed by: Matthew Ahrens <mahrens@delphix.com>
Reviewed by: Serapheim Dimitropoulos <serapheim@delphix.com>
Approved by: Dan McDonald <danmcd@omniti.com>

usr/src/cmd/zdb/zdb.c

@@ -1566,7 +1566,8 @@ dump_deadlist(dsl_deadlist_t *dl)
 	    dle = AVL_NEXT(&dl->dl_tree, dle)) {
 		if (dump_opt['d'] >= 5) {
 			char buf[128];
-			(void) snprintf(buf, sizeof (buf), "mintxg %llu -> ",
+			(void) snprintf(buf, sizeof (buf),
+			    "mintxg %llu -> obj %llu",
 			    (longlong_t)dle->dle_mintxg,
 			    (longlong_t)dle->dle_bpobj.bpo_object);