Adapt method to deal with Non-ASCII filenames.

[nananek]

Hi, I found your project at Arch Linux AUR, and I liked it.
But I found a bag.

(on my zsh)
7kry the-mountpoint [20:26]% LANG=C ls
ls: cannot access 名称未設定.png: Input/output error
.
.
.
.
??????????????????.png
.
.

I am a Japanese, so some files have Japanese characters as their file name.

Therefore I attempted to fix.
I'm not sure whether this is the only fix ought to be done, but it seems OK.
Please consider that.

Thank you.

[agusdallalba]

I confirm it works, and I see no side effects.