rather than in Annex D.

synopsis and add proper descriptions for the parts of the C standard
library that we modify.

it are described, and change those places to use the formatting style
we normally use for library entity descriptions.

is a bad home for it, but it seems to be the best bad home, as the
portions of <cstdlib> are described in 5 different library clauses.

change signature between the C standard library and the C++ standard
library here.

place. We don't need two descriptions of the contents of <ctime>.

the respective header.

in C++.

the place where C++ gives them different meaning from C.

standard library description and in a couple of examples.

library macro of the same name, now that we no longer explicitly say
that all of <cstddef> is based on the corresponding C header.

optional in the synopsis, to match the normative requirement.

contains a C header synopsis.