Return file-error if 550 is returned when trying MDTM

that the output looks better

Matthew Blain.

previously, if you called curl_easy_perform and then set the global dns
cache, the global cache wouldn't be used.  I don't see this really happening
in practice, but this code allows you to do it.

care how many bytes that is readable NOW. Philippe Raoult reported the
bug in 7.10.3-pre3.

is used.

makefile when --enable-maintainer-mode is not used.

situation occurs, which it previously didn't!

This was reptoed by Evan Jordan in bug report #653022.

Also, if ERROR_SYSCALL is returned from SSL_write(), include the errno number
in the error string for easier error detection.

#651464.

listening on the port we use.

for a bigger buffer and this is indeed badness for us. Making this work
on both old and new glibc versions require an ugly loop that in its worse
form cause 45 bad loops when using the correct glibc and a non-resolving
host name... :-/

We want a better fix. Badly.

setup the Makefile in tests/libtest/