Don't crash on verify-detached cases, where no output device is available
Don't crash on verify-detached cases, where no output device is available

svn path=/branches/work/kdab-post-4.0/kdepim/; revision=739727

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