Log Message:
Update to 4.1. From the changelog:

 - New '-n' non-interactive option disables keyboard input
 - EV_TRACE environment variable enables file system event tracing
 - Track changes to the inode number as a workaround for missing delete
   events on the Linux kernel
 - Warn instead of error if kqueue fails to register on STDIN
 - Close STDIN before running the utility when the restart option is used
 - Restore terminal settings if terminated by a signal