Error when filename contains asian or non-western characters.

[AndroXD]

SinsyPlus will throw a "curl: (26) couldn't open file" error when a filename contains asian or non-western characters. You can reproduce the bug running this command "sinsyplus.exe Piano(ピアノ).xml ja" on this file: https://raw.githubusercontent.com/AndroYD84/Files/master/FilenameProblem1/Piano(%E3%83%94%E3%82%A2%E3%83%8E).xml I tried it on sinsy.jp demo page and it worked perfectly. Can you please correct this bug? Thank you very much.