Refactor constants.

git-svn-id: https://svn.apache.org/repos/asf/logging/log4j/log4j2/trunk@1594453 13f79535-47bb-0310-9956-ffa450edef68
Refactor constants.

git-svn-id: https://svn.apache.org/repos/asf/logging/log4j/log4j2/trunk@1594457 13f79535-47bb-0310-9956-ffa450edef68
Add commented out helper line.

git-svn-id: https://svn.apache.org/repos/asf/logging/log4j/log4j2/trunk@1594459 13f79535-47bb-0310-9956-ffa450edef68
Add commented out helper line.

git-svn-id: https://svn.apache.org/repos/asf/logging/log4j/log4j2/trunk@1594460 13f79535-47bb-0310-9956-ffa450edef68
Refactor constants.

git-svn-id: https://svn.apache.org/repos/asf/logging/log4j/log4j2/trunk@1594461 13f79535-47bb-0310-9956-ffa450edef68
Refactor constants.

git-svn-id: https://svn.apache.org/repos/asf/logging/log4j/log4j2/trunk@1594462 13f79535-47bb-0310-9956-ffa450edef68