Agree with rgreen45. Differences in wear are probably more significant than the original very slight difference in the (new) size, and the wear difference is probably insignificant as well. Still, I would put two identical tires on the same end of an axle whenever possible. The dual pair operates as one single tire, so anything you can do to make them roll exactly the same is a good idea.
2004 American Tradition; 2014 Buick LaCRosse
Homebase in the Ocala Nat'l Forest near Ocala, FL