[BUG] constants parsing

HI, I've just noticed this:

C:\ruby\lib\ruby\1.8\webrick\log.rb:14
   FATAL, ERROR, WARN, INFO, DEBUG = 1, 2, 3, 4, 5

is show at 
http://ruby-doc.org/stdlib/libdoc/webrick/rdoc/classes/WEBrick/BasicLog.html
as just

Constants
DEBUG   =       1, 2, 3, 4, 5

J.