l10n: fix translation of combobox contents
l10n: fix translation of combobox contents

The other translation didn't work, because it just filled the
first (and only) combobox choice with the translation of "inch/mm",
leaving no choice to be made.

jaguarcat79/ILC-with-LinuxCNC,mhaberler/machinekit,kinsamanka/machinekit,aschiffler/linuxcnc,Cid427/machinekit,ArcEye/MK-Qt5,araisrobo/machinekit,Cid427/machinekit,bobvanderlinden/machinekit,ikcalB/linuxcnc-mirror,strahlex/machinekit,strahlex/machinekit,cdsteinkuehler/linuxcnc,aschiffler/linuxcnc,kinsamanka/machinekit,bmwiedemann/linuxcnc-mirror,ArcEye/machinekit-testing,araisrobo/machinekit,cdsteinkuehler/linuxcnc,unseenlaser/machinekit,ArcEye/machinekit-testing,bmwiedemann/linuxcnc-mirror,araisrobo/machinekit,jaguarcat79/ILC-with-LinuxCNC,RunningLight/machinekit,aschiffler/linuxcnc,Cid427/machinekit,mhaberler/machinekit,araisrobo/machinekit,narogon/linuxcnc,araisrobo/machinekit,kinsamanka/machinekit,ArcEye/MK-Qt5,EqAfrica/machinekit,jaguarcat79/ILC-with-LinuxCNC,EqAfrica/machinekit,Cid427/machinekit,unseenlaser/linuxcnc,RunningLight/machinekit,ArcEye/machinekit-testing,cdsteinkuehler/MachineKit,ArcEye/machinekit-testing,ArcEye/MK-Qt5,aschiffler/linuxcnc,RunningLight/machinekit,cdsteinkuehler/linuxcnc,cdsteinkuehler/MachineKit,narogon/linuxcnc,bmwiedemann/linuxcnc-mirror,cdsteinkuehler/MachineKit,aschiffler/linuxcnc,unseenlaser/linuxcnc,narogon/linuxcnc,kinsamanka/machinekit,ikcalB/linuxcnc-mirror,mhaberler/machinekit,cdsteinkuehler/MachineKit,EqAfrica/machinekit,strahlex/machinekit,cdsteinkuehler/MachineKit,ArcEye/MK-Qt5,cdsteinkuehler/linuxcnc,unseenlaser/machinekit,bmwiedemann/linuxcnc-mirror,RunningLight/machinekit,bobvanderlinden/machinekit,EqAfrica/machinekit,strahlex/machinekit,bmwiedemann/linuxcnc-mirror,ikcalB/linuxcnc-mirror,RunningLight/machinekit,araisrobo/machinekit,kinsamanka/machinekit,EqAfrica/machinekit,ArcEye/MK-Qt5,strahlex/machinekit,ArcEye/MK-Qt5,unseenlaser/linuxcnc,Cid427/machinekit,unseenlaser/linuxcnc,mhaberler/machinekit,narogon/linuxcnc,unseenlaser/machinekit,unseenlaser/machinekit,RunningLight/machinekit,bobvanderlinden/machinekit,mhaberler/machinekit,Cid427/machinekit,mhaberler/machinekit,ikcalB/linuxcnc-mirror,Cid427/machinekit,unseenlaser/machinekit,strahlex/machinekit,bmwiedemann/linuxcnc-mirror,ArcEye/machinekit-testing,bobvanderlinden/machinekit,unseenlaser/machinekit,EqAfrica/machinekit,bobvanderlinden/machinekit,cdsteinkuehler/linuxcnc,strahlex/machinekit,ArcEye/machinekit-testing,cdsteinkuehler/linuxcnc,kinsamanka/machinekit,RunningLight/machinekit,mhaberler/machinekit,araisrobo/machinekit,bobvanderlinden/machinekit,EqAfrica/machinekit,kinsamanka/machinekit,mhaberler/machinekit,narogon/linuxcnc,cdsteinkuehler/MachineKit,ArcEye/MK-Qt5,bobvanderlinden/machinekit,unseenlaser/machinekit,araisrobo/machinekit,ArcEye/machinekit-testing,Cid427/machinekit,EqAfrica/machinekit,araisrobo/machinekit,unseenlaser/machinekit,jaguarcat79/ILC-with-LinuxCNC,jaguarcat79/ILC-with-LinuxCNC,bobvanderlinden/machinekit,ArcEye/MK-Qt5,unseenlaser/linuxcnc,bmwiedemann/linuxcnc-mirror,RunningLight/machinekit,ikcalB/linuxcnc-mirror,ArcEye/machinekit-testing,kinsamanka/machinekit,ikcalB/linuxcnc-mirror,ikcalB/linuxcnc-mirror