zlib port broken?

[Chip Warden]

It looks like pipping at macports.org made a change to the zlib portfile  
a few hours ago, and now it is broken, at least on my MacBook:

> $ port -v -d install zlib
> DEBUG: Found port in file:///opt/local/var/db/dports/sources/ 
> rsync.rsync.darwinports.org_dpupdate_dports/archivers/zlib
> DEBUG: Changing to port directory: /opt/local/var/db/dports/sources/ 
> rsync.rsync.darwinports.org_dpupdate_dports/archivers/zlib
> DEBUG: invalid command name "configure.universal_args"
>     while executing
> "configure.universal_args ${configure.args}"
>     (file "Portfile" line 30)
>     invoked from within
> "source Portfile"
>     invoked from within
> "$workername eval source Portfile"
>     (procedure "dportopen" line 47)
>     invoked from within
> "dportopen $porturl [array get options] [array get variations]"
> Error: Unable to open port: invalid command name  
> "configure.universal_args"

Any ideas, or am I just missing something?

Thanks,

Chip