* Fix a regression in the CVE-2011-3192 byterange fix:

      Range: bytes=-1

  Resulted in the first two bytes delivered, not in the last one.

PR: 51748
Submitted by: low_priority <lowprio20 gmail.com>
Reviewed by: rpluem


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1163985 13f79535-47bb-0310-9956-ffa450edef68