As xffm seems to show ports@openbsd.org as the maintainer of xfce4 I will report this here.
Xffm (the XFCE4 File Manager) issues rm -rfv when you try to empty the trashcan. As the -v option is a Linux-ism for verbose deletion (prints all file names as they are deleted) the rm command fails. I can fix this in my local copy but haven't worked out the ports system enough to produce a proper OpenBSD patch yet. - Andy
