Log Message:
Update devel/ruby-rdoc package to 3.9.3.

=== 3.9.3 / 2011-08-23

* Bug fixes
  * Add US-ASCII magic comments to work with <tt>ruby -Ku</tt>.  \ 
Issue #63 by
    Travis D. Warlick, Jr.
  * Image paths at HTTPS URLs are now turned into +<img>+ tags.  Pull
    Request #60 by James Mead
  * Markup defined by RDoc::Markup#add_special inside a \ 
<tt><tt></tt> is no
    longer converted.