[Dovecot] 1.0-test14: no sendfile() in Solaris 8

[Andreas Jaekel]

Aloha.

The current CVS snapshot and 1.0-test14 will not build on Solaris 8
because it does not provide a sendfile() funtion.  It just has sendfilev().
Solaris 9 has sendfile(), though.

Using the old sendfile-util.c from 1.0-test1 and setting HAVE_SOLARIS_SENDFILEV
instead of HAVE_LINUX_SENDFILE in config.h works.

Greetings,
      Andy.