When neither running on a terminal nor with -q, names must be passed
through as they are, nothing must be replaced with question marks.
Effectively, -q was always in effect. SMALL was not affected.
Triggered by a different patch from Martijn van Duren <openbsd plus tech
at list dot imperialat dot at>, who confirmed that this version is better.
Identified as a regression by tedu@.
OK sthen@.
non-printable Unicode codepoints and invalid bytes with ASCII
question marks. No change for the SMALL version.
Using ideas developed by tedu@, phessler@, bentley@ and feedback from many.
OK yasuoka@ czarkoff@ sthen@.
