Better private method name and don't let param name hide ivar name.

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/exec/trunk@1613076 13f79535-47bb-0310-9956-ffa450edef68
Convert 'for' loops to enhanced 'for' loops.

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/exec/trunk@1613078 13f79535-47bb-0310-9956-ffa450edef68
Remove extra parens.

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/exec/trunk@1613093 13f79535-47bb-0310-9956-ffa450edef68
Use final.

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/exec/trunk@1613094 13f79535-47bb-0310-9956-ffa450edef68