SOLR-4580: fix strip chroot call.

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1622319 13f79535-47bb-0310-9956-ffa450edef68
SOLR-4406: Fix RawResponseWriter to respect 'base' writer

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1622321 13f79535-47bb-0310-9956-ffa450edef68