[musl] printf("%lc", L'\0')

["Jₑₙₛ Gustedt" <jens.gustedt@inria.fr>]

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Hello,
the Austin Group has a bug at

	https://austingroupbugs.net/view.php?id=1647

that lead to a (quite late) ballot comment for C23. It seems that musl
is the only implementation here that plays by the book and has no
byte of output at all for this call

     printf("%lc", L'\0');

All others seem to be more consistent with the other "c" output
formats and print one NUL byte.

Are there any feelings if we are going to change this in the sense as
AG proposes?

Thanks
Jₑₙₛ

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