Provide better legend in scheduler failure/debugging message

loopy/schedule.py

@@ -381,8 +381,8 @@ def generate_loop_schedules_internal(sched_state, loop_priority, schedule=[],
         print 75*"="
         print "CURRENT SCHEDULE:"
         print "%s (length: %d)" % (dump_schedule(schedule), len(schedule))
-        print("(LEGEND: entry: <iname>, exit: </iname>, instructions "
-                "w/ no delimiters)")
+        print("(LEGEND: entry into loop: <iname>, exit from loop: </iname>, "
+                "instructions w/ no delimiters)")
         #print "boost allowed:", allow_boost
         print 75*"="
         print "LOOP NEST MAP:"