[Rd] R CMD Sd2Rd a.sgml > a.Rd does not recognize <code> tag (PR#8289)

[timh@insightful.com]

I'm trying:

	R CMD Sd2Rd file.sgml > file.Rd

If file.sgml contains
	<code>x</code>
this should be translated to
	\code{x}
in the .Rd file, but is not.  
It should be treated the same as the old
	<s-expression>x</s-expression>



I'm using:
Cygwin (uname gives: CYGWIN_NT-5.1) (installed 10 Oct 05)
Perl 5.8.7 build 813	(installed 7 Nov 05)

--please do not edit the information below--

Version:
 platform = i386-pc-mingw32
 arch = i386
 os = mingw32
 system = i386, mingw32
 status = 
 major = 2
 minor = 2.0
 year = 2005
 month = 10
 day = 06
 svn rev = 35749
 language = R

Windows XP Professional (build 2600) Service Pack 2.0

Locale:
LC_COLLATE=English_United States.1252;LC_CTYPE=English_United States.1252;LC_MONETARY=English_United States.1252;LC_NUMERIC=C;LC_TIME=English_United States.1252

Search Path:
 .GlobalEnv, package:methods, package:stats, package:graphics, package:grDevices, package:utils, package:datasets, Autoloads, package:base