forward port 494183: avoid compiler warning
forward port 494183:
avoid compiler warning

svn path=/trunk/KDE/kdepim/; revision=516088

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