Tool for controlling logs reopening. Used for log rotation which untied from system environment (syslog/journald/etc).

1. pass log streams through worker instances to files
2. rotate files by removing/moving files, then send SIGUSR2 signal to all inslogrotator processes.

• passes all incoming stdin to file, provided in commandline.
• if got SIGUSR2 signal, just reopen file and continues to pass incoming stream