"Behold, he will kill me. I have no hope" (13:15). Has Job given up?

Job says, "Behold, he will kill me. I have no hope. Nevertheless, I will maintain my ways before him" (13:15). Two things in the text are worth seeing. First, the Hebrew text behind these notes (the Westminster Leningrad Codex) marks one word in this verse to be read differently from the way it is written. It is written with the letters of the word for not (lo'), and marked to be read as to him (lo). The WEB's I have no hope matches the written word (tap hope); the word marked to be read would have to him in that place. These notes don't decide between them. Second, the same verse goes on: "Nevertheless, I will maintain my ways before him", where maintain is the verb of "I desire to reason with God" (13:3) (tap reason). Just before, Job says, "Let come on me what will" (13:13). Just after, he says, "This also will be my salvation, that a godless man will not come before him" (13:16), and "See now, I have set my cause in order" (13:18). Elsewhere Job speaks of hope as gone: his days "are spent without hope" (7:6), and "where then is my hope?" (17:15), with another Hebrew word, tiqvah. With either reading of the one word, the rest of 13:15 stands as the WEB gives it, and these notes leave the question with the reader.