add the rest of the GIT_DIFF_LINE_* cases
add the rest of the GIT_DIFF_LINE_* cases

libgit2/rugged,Acidburn0zzz/rugged,Acidburn0zzz/rugged,tpickett66/rugged,saraid/rugged,libgit2/rugged,tpickett66/rugged,saraid/rugged,Acidburn0zzz/rugged,saraid/rugged,tpickett66/rugged,libgit2/rugged