[PATCH 2/7] support: Add missing NSS formatting and checking functions

[Florian Weimer]

* DJ Delorie:

> I realize this patch completes a set of previously existing functions,
> but do we need to have one file per function for support functions?  We
> only ever use them in test cases, and we generally aren't that worried
> about the code size for test cases.  We *are* worried about build/test
> times, and having fewer source files to process should help build times.

It simplifies navigation (at least for me), and it allows easy
comparison of the different variants.  Moving everything into one file
now creates annoying delete conflicts due to the copyright year changes.

Thanks,
Florian