After CWD, request explicit PWD to get the new working directory
After CWD, request explicit PWD to get the new working directory

CoreFTP currently expects the server to send the new working directory
directly in the response to the CWD command. However, I don't think this
is standard/generally expected behavior (at least, the server with which
I am testing it returns just "250 CWD command successful.").

So, let's request the new working directory using an explicit request
for PWD.

sparkeh9/CoreFTP