Evas linebreak: Fix wordbreak bug when there are chars < 0x0A.
Evas linebreak: Fix wordbreak bug when there are chars < 0x0A.

The binary search used unsigned indexes which didn't work well in
that scenario (would have gotten to -1).

git-svn-id: 6d771e449150288cc513807b7f4d2af31e9482bd@66137 7cbeb6ba-43b4-40fd-8cce-4c39aea84d33

TizenChameleon/uifw-evas,TizenChameleon/evas,TizenChameleon/evas,TizenChameleon/uifw-evas,TizenChameleon/evas,TizenChameleon/uifw-evas,TizenChameleon/uifw-evas,TizenChameleon/evas