Log file rewrite (not appended) if time range lower than time mask

[andrejs82git]

Hi!

I was try to use pm2-logrotate with that params

• rotateInterval = * (rotate every minute)
• dateFormat=YYYY-MM-DD (not have minute)

And it work fine, exclude one thing, - every new minutecreating new empty logfile and write new portion from main log file.

I am not familiar with pm2-logrotate code, but i found code that looks like can fixing that befavior.

--var writeStream = fs.createWriteStream(final_name, {'flags': 'w+'});
++var writeStream = fs.createWriteStream(final_name, {'flags': 'a+'});

just change w+ to a+, i think it will logical. It will append one more portion of log file and not dangerous to delete useful information.

Thanks a lot!