Avoid assret in public interface in osync_data_has_data() call. Instead of assert() when first argument is not set, just return FALSE.
Avoid assret in public interface in osync_data_has_data() call. Instead
of assert() when first argument is not set, just return FALSE.


git-svn-id: e31799a7ad59d6ea355ca047c69e0aee8a59fcd3@5144 53f5c7ee-bee3-0310-bbc5-ea0e15fffd5e

luizluca/opensync-luizluca,luizluca/opensync-luizluca