rely on the new go-ahead-and-try mechanism that I just added to Transfer()

new logic can retry the same operation on a new connection!

- which now is made using a macro named FTPSENDF. I turned it all caps just
to make it more visible that it is in fact a macro.

accidentally did after the Curl_tvdiff() interface change

connection. The simple socket-check is not enough in these cases.

that sets telnet options

to hold 512 bytes (for user+password+hostname)

downloads

We need to set "no further data to download" before the Curl_ldap() function
returns, as otherwise it'll hang on that assumed transfer.

the list of machines

already existing cookie with a new one.