With the latest Org-mode I don't see the behavior you mention, I suspect
it may be due to something else in your config or environment.

Here's some easily reproducible commands which run export without
loading the local config.  Notice that I don't get any garbage in the
output.

    14:35 bagel:/tmp cat garbage.org

    * Headline
      #+BEGIN_SRC sh
      test source
      #+END_SRC

    14:35 bagel:/tmp emacs --batch --eval "(progn (add-to-list 'load-path \"~/src/org-mode/lisp\") (require 'org))" garbage.org -f org-html-export-to-html
    OVERVIEW
    Cannot fontify src block (htmlize.el >= 1.34 required)
    Saving file /tmp/garbage.html...
    Wrote /tmp/garbage.html

    14:35 bagel:/tmp grep -C 2 "test source" garbage.html
    <div class="org-src-container">

    <pre class="src src-sh">test source
    </pre>
    </div>

    14:35 bagel:/tmp emacs --batch --eval "(progn (add-to-list 'load-path \"~/src/org-mode/lisp\") (require 'org) (message (org-version)))"
    8.2

    14:35 bagel:/tmp emacs --version
    GNU Emacs 24.3.1
    Copyright (C) 2013 Free Software Foundation, Inc.
    GNU Emacs comes with ABSOLUTELY NO WARRANTY.
    You may redistribute copies of Emacs
    under the terms of the GNU General Public License.
    For more information about these matters, see the file named COPYING.

aditya siram <aditya.siram@gmail.com> writes:

> Using the org-mode that ships with Emacs 24.3.50.1 [1] I processed the file
> using `org-export-to-html` and could not reproduce the issue.
>
> The org-mode from HEAD doesn't have `org-export-to-html` since the backends
> were re-written and I have to use `org-html-export-to-html` and am seeing
> this issue.
>
> Thanks for taking the time ...
> -deech
>
> [1] Org-mode version 7.9.3f
>
>
> On Sat, Sep 21, 2013 at 2:41 PM, Eric Schulte <schulte.eric@gmail.com>wrote:
>
>> I can't reproduce this problem.  Do you still see the problem with a
>> minimal Emacs config starting with "emacs -Q"?
>>
>> Do you see this on export to other backends?
>>
>> aditya siram <aditya.siram@gmail.com> writes:
>>
>> > Hi all,
>> > I'm on org-mode version:
>> > Org-mode version 8.2 (release_8.2-8-g16a57e @
>> > /home/deech/EmacsConfig/org-mode/lisp/)
>> >
>> > Unfortunately the html exporter has some garbage characters at the end of
>> > every line.
>> >
>> > Here's a small org file:
>> > * Headline
>> >   #+BEGIN_SRC sh
>> >   test source
>> >   #+END_SRC
>> >
>> > The resulting HTML is attached.
>> >
>> > Thanks!
>> > -deech
>> >
>> > test-html-export
>> >
>> > Table of Contents
>> >
>> >      * 1. Headline
>> >
>> > 1 Headline
>> >
>> > test source&#57344;&#57345;&#57345;
>> >
>> >    Author: deech
>> >
>> >    Created: 2013-09-20 Fri 16:49
>> >
>> >    Emacs 24.3.50.1 (Org mode 8.2)
>> >
>> >    Validate
>>
>> --
>> Eric Schulte
>> https://cs.unm.edu/~eschulte
>> PGP: 0x614CA05D
>>

--
Eric Schulte
https://cs.unm.edu/~eschulte
PGP: 0x614CA05D