only add warning log only when detect detaching a wrong watcher

Signed-off-by: garyzjq <[email protected]>

lib/fluent/plugin/in_tail.rb

@@ -524,9 +524,8 @@ def update_watcher(target_info, pe)
     # At shutdown, IOHandler's io will be released automatically after detached the event loop
     def detach_watcher(tw, ino, close_io = true)
       if @follow_inodes && tw.ino != ino
-        log.warn("Skip detach_watcher because this is not the expected watcher to be detached",
-                  path: tw.path, current_ino: tw.ino, expect_ino_to_close: ino)
-        return
+        log.warn("detach_watcher could be detaching an unexpected tail_watcher with a different ino.",
+                  path: tw.path, actual_ino_in_tw: tw.ino, expect_ino_to_close: ino)
       end
       tw.watchers.each do |watcher|
         event_loop_detach(watcher)