keyPressEvent(): fix more than two years old porting error
keyPressEvent(): fix more than two years old porting error

svn path=/branches/KDE/4.1/kdepim/; revision=895816

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