Print spec arg errors to stderr #4910
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asterite
approved these changes
Sep 1, 2017
RX14
approved these changes
Sep 1, 2017
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This PR aims to finish the work started in #4494 to print all errors on stderr instead of stdout.
I'd spotted some errors in spec that needed to be on stderr (#4494 (comment)), but it wasn't in the scope of the ongoing pr, this one is here to finish it!