Fix attach file even if it's relative path as for ksendmail
Fix attach file even if it's relative path as for ksendmail

svn path=/trunk/KDE/kdepim/; revision=948109

lefou/kdepim-noakonadi,lefou/kdepim-noakonadi,lefou/kdepim-noakonadi,lefou/kdepim-noakonadi,lefou/kdepim-noakonadi,lefou/kdepim-noakonadi