To update the .pot and existing translations use:
    bash updatepo.sh

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update .pot :
    --don't!-- make pot in build/
    absolute paths will appear in the .pot
    try :
    xgettext -d hardinfo -o hardinfo.pot -k_ -kN_ -kC_:1c,2 -kNC_:1c,2 -c/ --from-code=UTF-8 ...

update .po files after .pot update :
    msgmerge -N XX.po hardinfo.pot > XX_.po && mv XX_.po XX.po