NET-561 FTPFile.toFormattedString prints user and group in wrong order

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/net/trunk@1643374 13f79535-47bb-0310-9956-ffa450edef68
Document what happens when invalid parameters supplied

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/net/trunk@1643379 13f79535-47bb-0310-9956-ffa450edef68
Fix indentation and unnecessary line wraps

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/net/trunk@1643385 13f79535-47bb-0310-9956-ffa450edef68
Javadoc

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/net/trunk@1643406 13f79535-47bb-0310-9956-ffa450edef68
Standardise on Calendar.DAY_OF_MONTH rather than the synonym Calendar.DATE - which is less obvious

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/net/trunk@1643407 13f79535-47bb-0310-9956-ffa450edef68