devfs weirdness with kqemu

[Juergen Lock]

I got a report of this on irc:

# kldload kqemu

$ ls -l /dev/kqemu*
ls: /dev/kqemu*: No such file or directory
$ ls -l /dev/kqemu 
crw-rw----  1 root  wheel  220,   0 Apr  7 15:54 /dev/kqemu
$ ls -l /dev/kqemu*
crw-rw----  1 root  wheel  220,   0 Apr  7 15:54 /dev/kqemu0
crw-rw----  1 root  wheel  220,   1 Apr  7 15:54 /dev/kqemu1

 Is this something the kld is doing wrong (/usr/ports/emulators/kqemu-kmod)
or is it a devfs problem?  The report I got was for 6.0, but it also
happens for me on RELENG_5.  This is nothing serious (kqemu works), but
it certainly can be confusing for users...