Fix intltool lock file issue during make distcheck
Fixes issue where lock file was not cleaned up causing distcheck failure
https://mail.xfce.org/pipermail/xfce4-dev/2022-May/032915.html
Fixes issue where lock file was not cleaned up causing distcheck failure
https://mail.xfce.org/pipermail/xfce4-dev/2022-May/032915.html