I saw this in my syslog when I recently FTPd to 127.0.0.1 and logged in
(using my wife's account, which is why it says "andrea" :-):

Dec 17 08:51:47 jik ftpd: localhost.localdomain:
andrea                                                                                                                                                                                                                                                                                                                                                                          
[28076]: FTP LOGIN FROM localhost.localdomain [127.0.0.1], andrea

Yes, that's all on one line in the syslog.  The problem appears to be that
ftpd is using space as SPT_PADCHAR on Linux when it should in fact be using
a null instead.

The attached patch, accompanied by running "autoconf" to regenerate the
configure script, appears to solve the problem, but I'm not sure it's the
*correct* way to solve the problem since there appears to be a hybrid of
two different building mechanisms right now, and I'm not sure the wu-ftpd
development team has yet figured out all the details of how they're going
to set things like SPT_PADCHAR within configure.