add Rugged::Diff::Hunk#lines enumerator
add Rugged::Diff::Hunk#lines enumerator

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