Related to #8 -- 'msgfmt' also finds some issues not found by other checks or by checkPoFile(), e.g.
msgfmt -c --statistics -o tmp pt_BR.po
# pt_BR.po:8081: duplicate message definition...
# pt_BR.po:1033: ...this is the location of the first definition
# pt_BR.po:8087: duplicate message definition...
# pt_BR.po:1320: ...this is the location of the first definition
# msgfmt: found 2 fatal errors
Related to #8 -- 'msgfmt' also finds some issues not found by other checks or by checkPoFile(), e.g.