(It's switching the colours to inverse video here, I guess...)

However, I'm not able to reproduce the problem you're seeing -- it
doesn't switch the colour to red for me.  Then again, that command
doesn't actually update anything for me, which isn't strange, since I've
just installed it:

larsi@open-catalina lisp % sudo port upgrade asciidoc cmake djvulibre
sudo port upgrade asciidoc cmake djvulibre
--->  Scanning binaries for linking errors
--->  No broken files found.
--->  No broken ports found.
larsi@open-catalina lisp % 

So I guess I'll just have to wait a while until something is
upgradeable...

-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no