Update documentation for 'gcry_sexp_extract_param'.
* doc/gcrypt.texi (gcry_sexp_extract_param): Mention that all MIPs must be set to NULL first, and document how the function behaves in case of errors. * src/sexp.c (_gcry_sexp_extract_param): Likewise. * src/gcrypt.h.in (gcry_sexp_extract_param): Copy the comment from '_gcry_sexp_extract_param'.
- Signed-off-by: Justus Winter <justus@g10code.com>