x Windows: file open in append mode has shared read/write


git-svn-id: svn://svn.code.sf.net/p/zenlib/code/ZenLib/trunk@494 f098ebc7-0e84-4588-8ad0-e2271d839f10
+ Mac: EOL definitely moved from \r to \n


git-svn-id: svn://svn.code.sf.net/p/zenlib/code/ZenLib/trunk@495 f098ebc7-0e84-4588-8ad0-e2271d839f10