http://defect.opensolaris.org/bz/show_bug.cgi?id=6580

--- top-3.8beta1/commands.c
+++ top-3.8beta1/commands.c
@@ -501,13 +501,15 @@
     if (procnum == -1 || prio < PRIO_MIN || prio > PRIO_MAX)
     {
 	message_error(" renice: bad priority value");
+	return;
     }
 #endif
 
     /* move to the first process number */
     if ((str = next_field(str)) == NULL)
     {
-	message_error(" remice: no processes specified");
+	message_error(" renice: no processes specified");
+	return;
     }
 
 #ifdef HAVE_SETPRIORITY