Page 120 - Photoshop for Lightroom Users – Scott Kelby 2nd Edition
P. 120
Step Four:
Now, the same technique, different side. Grab the left center control point and drag it all the way over to the left (it’s okay to pull it right off the edge of the
image) to stretch that clean selected area over so it covers that gap (as shown here). Click anywhere outside the bounding box to lock in your
transformation, then press Command-D (PC: Ctrl-D) to Deselect. Told ya it was easy.