with HPSS definition of u_signed64

When getting TSD addresses for _Cregexp_input and _Cregexp_bol the size needed is sizeof(char *) and not sizeof(char)

Fix typos

                                                   ^

platform)

serrno to errno in case of a failure and when we do not set explicitely
ourself serrno value

first call

Fixed AUTHOR section

elapsed time after the first send() or recv() and only if there are remaining
bytes to read or write, respectively