Fix logger message in lsi_dispatcher (#1603)

* Fix logger message typo in lsi_dispatcher

* small fix

gensim/models/lsi_dispatcher.py

@@ -124,7 +124,7 @@ def getstate(self):
         # and not `workers - 1` merges!
         # but merging only takes place once, after all input data has been processed,
         # so the overall effect would be small... compared to the amount of coding :-)
-        logger.info("merging states from %i workers", self.workers)
+        logger.info("merging states from %i workers", len(self.workers))
         workers = list(self.workers.items())
         result = workers[0][1].getstate()
         for workerid, worker in workers[1:]:
@@ -175,7 +175,6 @@ def exit(self):
             worker.exit()
         logger.info("terminating dispatcher")
         os._exit(0)  # exit the whole process (not just this thread ala sys.exit())
-# endclass Dispatcher
 
 
 def main():