Fixed empty string in to()  (which showed up as a trailing ", ") when selecting only a distribution list (and no individual email) with this dialog.
Fixed empty string in to()  (which showed up as a trailing ", ")
when selecting only a distribution list (and no individual email) with this dialog.

svn path=/trunk/kdepim/; revision=303805

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