Improve null handlign and annotations for LogEventInfo
Improve null handlign and annotations for LogEventInfo

luigiberrettini/NLog,luigiberrettini/NLog,UgurAldanmaz/NLog,snakefoot/NLog,BrutalCode/NLog,304NotModified/NLog,BrutalCode/NLog,NLog/NLog,UgurAldanmaz/NLog,sean-gilliam/NLog