[TASK] Add unit test to cover stdWrap_lang

Releases: master
Resolves: #76610
Change-Id: I2784bcbe76d091afc5ad312996f3d9e5b2d7e221
Reviewed-on: https://review.typo3.org/48562


Reviewed-by: Frank Naegler <frank.naegler@typo3.org>
Tested-by: Frank Naegler <frank.naegler@typo3.org>
Reviewed-by: Wouter Wolters <typo3@wouterwolters.nl>
Reviewed-by: Susanne Moog <typo3@susannemoog.de>
Tested-by: Susanne Moog <typo3@susannemoog.de>