archey fails to parse output of df

[solsticedhiver]

http://pastebin.archlinux.fr/425809 shows that for some locale where the decimal point is a coma, archey fails and throws an exception
archey seems to fail on output like this ??
http://pastebin.archlinux.fr/425811

note: I don't see why the usedperncent is calculated because it is alreedy returned by df

proprer parsing of df output is needed. with regex ?

I am reporting the bug of someone else

[jamek]

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