Error reporting into stderr stream

[valery1707]

If I try to compile KSY with errors, than compiler set exit status to 2 and show in console messages about discovered problems.
But this messages will be printed into stdout process's stream, while I expect them in stderr.

Demo KSY:

meta:
  id: demo
  file-extension: demo
  endian: le
seq:
  - id: header
    type: header
types:
  header:
    seq:
      - id: Magic
        contents: 'DEMO'

Compiler message: /types/header/seq/0/id: invalid attribute ID: 'Magic', expected /^[a-z][a-z0-9_]*$/

[GreyCat]

Probably a valid assumption, shouldn't be hard to fix.
Please note, though, that for machine-readable error log, it's preferable to use --ksc-json-output.

[GreyCat]

Here we go: kaitai-io/kaitai_struct_compiler@baed612

Please take a look and see if it works for you.

[GreyCat]

Works for me, no reply in 2 weeks => hopefully works for you too.