dhclient: default route not set

[Hanspeter Roth <hampi@rootshell.be>]

Hello,

I've upgraded OpenBSD from 3.3 to 3.4. Now while booting the default
route is not set. On the console I can see:

bound to a.a.a.a -- renewal in 1800 seconds.
writing to routing socket: No such process
add net default: gateway g.g.g.g not in table
starting system logger

When dhclient is started after the system is up, the default route
is set.
What could be the cause while booting?

-Hanspeter