Improve quality of error message.
Improve quality of error message.


git-svn-id: e31799a7ad59d6ea355ca047c69e0aee8a59fcd3@3267 53f5c7ee-bee3-0310-bbc5-ea0e15fffd5e

luizluca/opensync-luizluca,luizluca/opensync-luizluca