Sounds like you have env vars containing non-text data?
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Replying to @RichFelker
Negative. I have NUL in IFS in some setups, but removing it makes no difference.
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Replying to @mfukar
Sure? Assuming a UTF-8 locale, anything with high bytes that aren't well-formed characters is non-text.
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Replying to @RichFelker @mfukar
Grep might also treat non-printable chars (eg esc literals) as binary too but I doubt it.
6:08 AM - 16 Aug 2017
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