[TYPO3-dev] Admin-Log: Where are the entries coming from?

[Christopher Stelmaszyk]

Hi guys,

in Admin > Log there is this system-log with all those entries, like

- User Müllermilch logged in from 123.141.278.514 () (msg#255.1.1)
- User Müllermilch logged out from TYPO3 Backend (msg#255.2.1)
 -Datensatz 'Homepage' (pages:1) wurde aktualisiert. Changes in fields: 
TSconfig.(msg#1.2.10)
- Record '' (tt_content:173) was deleted from page 'Moin!'

I have already translated the log-page itself; the changes are part of TYPO3 
4.3.
But how can I translate those entries?

Christopher