* Stefan Kanthak <stefan.kanthak@xxxxxxxx>, 2021-07-12, 11:37:
JFTR: to avoid any possible confusion of "null byte" alias NUL with the "null pointer" alias NULL (C macro) or nullptr (C++), "null byte" should be replaced with "NUL byte"!
"NUL byte" looks like a typo for "NULL byte", so if anything, it makes the potential for confusion greater.
Anyway, "null byte" is the preferred term in the man-pages style guide; see the "NULL, NUL, null pointer, and null character" subsection in man-pages(7).
-- Jakub Wilk