print errors to STDERR

+2 votes
asked Aug 20, 2018 in Wanted features by valexiev (790 points)
As http://forum.plantuml.net/8086 shows, there error cases when puml calculates the needed error-image height a couple of pixels short, which may lead to confusion.
I think it would be best to also print out the errors to STDERR, in addition to the output image.

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