GIFBUILDER uses provided file names and text snippets in order to
generate the final name for files to be written to. In case text
snippets start with a dot, this is also reflected into the file
name - preventing some web servers to deliver the file since it's
considered to be internal.

Resolves: #83029
Releases: master, 8.7
Change-Id: Iebed832c1c2429c7400373a6af4d5ae14a9ea18e
Reviewed-on: https://review.typo3.org/54677


Tested-by: TYPO3com <no-reply@typo3.com>
Reviewed-by: Georg Ringer <georg.ringer@gmail.com>
Tested-by: Georg Ringer <georg.ringer@gmail.com>
Reviewed-by: Stefan Neufeind <typo3.neufeind@speedpartner.de>
Tested-by: Stefan Neufeind <typo3.neufeind@speedpartner.de>