The 'ftpwho' program uses 'ps' to list the process and then show the 'ftpd' process. The 'ftpwho' program doesn't understand the new output format of 'ps', so it shows meaningless process.
I have verified this bug to be true in 6.0.
this is a duplicate of bug# 2455.
*** This bug has been marked as a duplicate of 2455 ***