link_elf_obj: symbol icl_pdu_new_bhs undefined

[Edward Tomasz Napierała]

On 0725T0918, Nils Beyer wrote:
> Hi Adam,
> 
> Adam McDougall wrote:
> > Yes, someone on irc ran into it, I confirmed it with -stable, and
> > someone beat me to filing a bug report:
> > 
> > https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=192031
> 
> That was me. Unfortunately, there hasn't been any interest in that report
> yet and I don't know how to fix that on my own. So I've reverted to r268571
> and live with it now...

Thanks for tracking it down!  I've committed a fix to CURRENT, will MFC
in three days.

I wonder what broke it.  Some linker changes?