[BUGFIX] #5171 Fix warnings in the deprecation log

Change-Id: I34f99c3e35a06a8060e45f597f1c3eab4d54cfbf
Reviewed-on: http://review.typo3.org/34561
Reviewed-by: Oliver Klee <typo3-coding@oliverklee.de>
Tested-by: Oliver Klee <typo3-coding@oliverklee.de>