fix #8602 - More detailed OS version info for Linux and Windows systems

git-svn-id: http://josm.openstreetmap.de/svn/trunk@5850 0c6e7542-c601-0410-84e7-c038aed88b3b
see #8602, #8571 : use detailed OS info in status report

git-svn-id: http://josm.openstreetmap.de/svn/trunk@5851 0c6e7542-c601-0410-84e7-c038aed88b3b