These logs are written for debugging NUL file-corruption issue (#6133) and session lost issue (#10402) which are still problematic probably.
The writting log info will be triggered only when Windows notifies Notepad++ to end session.
The log file will be in "%APPDATA%\Notepad++\" or in Notepad++ installation folder if doLocalConf.xml is present.
To disable the log, just remove nppLogNulContentCorruptionIssue.xml.
Close#10871