fails:Net::FTP#put (binary mode) sends the contents of the passed local_file, without modifications
fails:Net::FTP#put (binary mode) sends the STOR command to the server
fails:Net::FTP#put (binary mode) returns nil
fails:Net::FTP#put (text mode) sends the STOR command to the server
fails:Net::FTP#put (text mode) sends the contents of the passed local_file, using
fails:Net::FTP#put (text mode) returns nil
