/usr/share/rep/0.90.2/lisp/remote-ftp.jl is in librep-dev 0.90.2-1.4.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/rep/0.90.2/lisp/rep/io/file-handlers/remote/ftp.jl
/usr/share/rep/0.90.2/lisp/rep/io/file-handlers/remote/ftp.jl