Outputting to a String on Windows fails

[test-org-rename]

Because pipes are opened in text mode by default, the output for binary types like PNG is mangled.
To fix this issue simply call the following line in the output_and_errors_from_command method:
stdin.binmode
Do this for both ways (Open3#popen3 and IO#popen). Note that it will also affect text types but should really not be an issue because \n is a valid newline for SVG and other text formats.

Regards,

Pascal

[glejeune]

Ok... But i can't test because i don't use Windows. Say me if it's ok.

[test-org-rename]

I've modified my local copy like you, so yes it should be ok. Before testing it i have some other issues, i'll create other tickets for them, watch out.