mod_rewrite: (CVE-2013-1862 (cve.mitre.org)) Ensure that client data

written to the RewriteLog is escaped to prevent terminal escape sequences
from entering the log file.

Backports: r1482349
Submitted by: jorton
Reviewed by: wrowe, covener, trawick



git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.0.x@1497018 13f79535-47bb-0310-9956-ffa450edef68