[TASK] Unit test to cover stdWrap_char

Releases: master
Resolves: #76316
Change-Id: I40c05c0d6a342b3d3c19dc164ae7716076aa3df2
Reviewed-on: https://review.typo3.org/48307


Reviewed-by: Frank Naegler <frank.naegler@typo3.org>
Tested-by: Frank Naegler <frank.naegler@typo3.org>
Reviewed-by: Morton Jonuschat <m.jonuschat@mojocode.de>
Tested-by: Morton Jonuschat <m.jonuschat@mojocode.de>