Back-ported r1620743:
- Fixed minor resource-leak [Coverity issue #45132]

_M   .
M    java/org/apache/catalina/startup/CatalinaProperties.java


git-svn-id: https://svn.apache.org/repos/asf/tomcat/tc7.0.x/trunk@1620747 13f79535-47bb-0310-9956-ffa450edef68