Strange perldoc perldoc

I just ran `perldoc perldoc` and got this:

SYNOPSIS
            B<perldoc> [B<-h>] [B<-D>] [B<-t>] [B<-u>] [B<-m>] [B<-l>] 
[B<-F>]
                [B<-i>] [B<-V>] [B<-T>] [B<-r>]
                [B<-dI<destination_file>>]
                [B<-oI<formatname>>]
                [B<-MI<FormatterClassName>>]
                [B<-wI<formatteroption:value>>]
                [B<-n>I<nroff-replacement>]
                [B<-X>]
                [B<-L> I<language_code>]
                PageName|ModuleName|ProgramName|URL

        Examples:

            B<perldoc> B<-f> BuiltinFunction

            B<perldoc> B<-L> it B<-f> BuiltinFunction

            B<perldoc> B<-q> FAQ Keyword

            B<perldoc> B<-L> fr B<-q> FAQ Keyword

            B<perldoc> B<-v> PerlVariable

        See below for more description of the switches.


Why is there mark-up in these verbatim paragraphs?


-- 
Just my 0.00000002 million dollars worth,
   Shawn

Programming is as much about organization and communication
as it is about coding.

[updated for today's programmers]
"Show me your code and conceal your interfaces, and I shall continue
to be mystified. Show me your interfaces, and I won't usually need
your code; it'll be obvious."
	-- Fred Brooks

Don't be clever; being great is good enough.