Great news! I hope Cruz endorses Johnson too. This will give Johnson the nevertrumpers and hurt trump. haha
Ah, hate to break it to you, but such folks were not going to vote for Trump just because Johnson was not on the ballot. Johnson may get some votes of those Pubs who loathe Trump, who might otherwise vote for Hillary. I think on balance Johnson helps Trump. A vote for Johnson is only a half vote against Trump, while a vote for Hillary is a full vote against Trump. I highly recommend going the full vote route against Trump, but that is just me. He's just too dangerous to be parsimonious and slash one's voting impact in half.