Apply security patch described in CIAC Bulletin G-20, which is a copy of IBM

Security Vulnerability Alert ERS-SVA-E01-1996:002.2.
A newline was not escaped in a shell command, potentially permitting arbitrary
commands to be run.
Submitted by: IBM Corp.


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/1.3.x@76481 13f79535-47bb-0310-9956-ffa450edef68