@var inside @code incorrectly rendered in DVI and PDF outputs

[Bruno Haible]

Hi Karl,

When @var occurs inside @code or @file, the italic or slanted font change
extends until the end of @code or @file. This is a bug because it's not
desired, and in the INFO output it's correct.

How to reproduce:

- Save this file:
============================ bug.texi ======================================
\input texinfo
@node Bug
@chapter Bug

You can book @address@hidden or @address@hidden

@bye
=============================================================================

- Put texinfo.texi version 2010-06-17.11 into the current directory.

- Run
    $ texi2dvi bug.texi
    $ texi2pdf bug.texi

- The result is in the attached image. Note that 'org' using the same font
  style as 'www', although the semantic designation in texinfo was the same.