Regressions after pathconv-adjustments(3.4.10-4)

[zksemi]

cd /d
mkdir []
mv test.wav []
# this is ok
ffmpeg -i []/test.wav test.flac
# this will throw error
ffmpeg -i '/d/[]/test.wav' test.flac
Error opening input: No such file or directory

[lazka]

That is somewhat expected, given the changes in #182 . I'm not quite sure how to improve things.

[reneparis]

See also #208