Darren Schroeder 8896ba80a4
make sure new nul chars don't print in char --list (#15858)
# Description

This PR fixes and oversight. When we added `nul`, `null_byte`, and
`zero_byte` we forgot to make them non-printable for `char --list`.
That's what this PR fixes.

# User-Facing Changes
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2025-05-31 08:04:46 -05:00
..

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