user link in knowbase - fixed #4608

git-svn-id: https://forge.indepnet.net/svn/glpi/trunk@22034 35612d4c-9d10-0410-837c-bf9dd1be60d7
minor fixed - see #4590

git-svn-id: https://forge.indepnet.net/svn/glpi/trunk@22035 35612d4c-9d10-0410-837c-bf9dd1be60d7