What that means is that
The last two votes were canceled because of lower than expected turnout among shareholders. The rule Michael Dell and his group wanted to change was the counting of those absentee votes as "no" votes.
Around 23% of shareholders didn't vote on the deal last time, according to WSJ, which was a big blow to the CEO's side.
Now it looks like those absentees are going to remain "nays" — good news for Carl Icahn.