-RM-383-MR-Umlauts in nifti-file fail
Umlauts for nifti-files will fail when LANGUAGE variable is unset
@LANGUAGE= @ -> fails when opening such files
@LANGUAGE=en_US.UTF-8@ -> produces "scrambled" characters in OpenWalnut e.g. Ķ.nii.gz instead of ö.nii.gz
(from redmine: created on 2014-10-13, closed on 2015-03-06)