Go to http://moodle.org/community/
Under the heading Moodle Shop, "out store" should be "our store".
Michael, thanks for creating this issue. I tried to fix it myself in lang customization, but unfortunately the moodle.org lang file is no longer listed. Thus assigning to moodle.com.
I've fixed this, just awaiting deployment onto moodle.org
Deployed on moodle.org
Thanks Dan, glad these trivial bugs are not beneath you!