fix bug that causes crash when telephone list is empty.
fix bug that causes crash when telephone list is empty.

svn path=/trunk/KDE/kdepim/strigi-analyzer/; revision=794573

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