Parse the last none-empty line of .m3u8 file

If the last sentence of .m3u8 file is not processed, because
it is not empty and has no line feed, M3UParser.isComplete()
returns false even though it is completed.

Change-Id: I01b9f900d44247a3ef40369a2f9198bb7eaf01b7
related-to-bug: 8405824
1 file changed