Add a description of the side effects of r1534575.

git-svn-id: https://svn.apache.org/repos/asf/tomcat/tc7.0.x/trunk@1534918 13f79535-47bb-0310-9956-ffa450edef68
Add subsection name.

git-svn-id: https://svn.apache.org/repos/asf/tomcat/tc7.0.x/trunk@1534919 13f79535-47bb-0310-9956-ffa450edef68