man page update

Greetings. I'm new to this list, so please be gentle.

I was recently shown that yum can find and select a package for 
installation based on a feature or capability, such as:
# yum install "perl(Archive::Tar)"
This will determine which package contains the named perl module, and 
install it if it's not already installed. Very cool.

When I read the man page (yum-3.2.8-9.el5.centos.2.1), I see nothing 
that even hints at this capability, unless I'm misreading it. It says 
that a package name Should I be looking elsewhere for yum documentation, 
or will the man page be updated/clarified at some point?

Thanks.

-- 
-Eric 'shubes'