Fix bogus Javadoc "<code>false</false>".

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/dbcp/trunk@1612152 13f79535-47bb-0310-9956-ffa450edef68
Fix bogus Javadoc "{*link " -> "{@link ".

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/dbcp/trunk@1612153 13f79535-47bb-0310-9956-ffa450edef68