improve log tests.
improve log tests.

actually check stuff instead of relying on user to do so, also
produces no output if is correct.



git-svn-id: a6113611d365f0fc061992be0d1d0b451b434026@67406 7cbeb6ba-43b4-40fd-8cce-4c39aea84d33

jordemort/eina,jordemort/eina,jordemort/eina