Some man pages refer to bash builtins (usually but not always including read and test). The documentation for test doesn't mention common things like the -f, -d, or -L flags. It refers to a non-existent section called "CONDITIONAL EXPRESSIONS". If you can't see the man page I'm talking about, just try "man builtins". $ rpm -q bash bash-3.2-18.fc8
The text in the builtins.1 manpage is included from the bash.1 manpage, so it refers to the section in the bash manpage. I don't think it's viable to mention that the section is in the bash manpage, not in the builtins one, because the very same text would have to be in the bash manpage.
I was thinking we either statically include that section of text from the bash man page, dynamically include it, or better still, re-write the section on the test builtin to include it.
I don't think it's worth the effort.