* mod_rewrite: Ensure that client data written to the RewriteLog is

      escaped to prevent terminal escape sequences from entering the
  log file. (CVE-2013-1862 (cve.mitre.org))

Submitted by: jorton
Reviewed by: jorton, covener, rpluem


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.2.x@1482349 13f79535-47bb-0310-9956-ffa450edef68