Reviving deleted port

[Bob Eager]

This relates to ftp/rexx-curl.

This was deleted after failing to build with the latest version of
curl. I didn't notice for a while (I was going through a period when I
couldn't update my ports tree). It is no longer in the ports tree at
all.

The problem turned out to be just an uninitialised variable! I have
made some other fixes related to the new curl.

QUESTION: Do I submit this as a 'new' port? Or is there some mechanism
for a deleted port?

(I am willing to take over maintainership)

-- 
Bob