Fixed #8547 -- Corrected the breadcrumb display in the object_history.html...

Fixed #8547 -- Corrected the breadcrumb display in the object_history.html template. Thanks sorl for catching this.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@8555 bcc190cf-cafb-0310-a4f2-bffc1f526a37