Not an issue in the least, and not something a home inspector would even bother with, when you decide to sell. It's a result of "settling" which is a misnomer, as it's actually the result of the structure drying out and moving. If you do decide to repair it, it's critical to not rip and tear at the area in a effort to patch it. You will never get good results with a long patch on a textured ceiling. If you caulk it, be sure to smush the caulk into the crack and not leave any on the surface. I have seen many repairs to textured interiors and stucco that would of looked a lot better if they had never been touched. Largely due to those that think a big bead of caulk, on top of a tiny crack, is the way to go. It ends up looking like an odd, bulging vein, after it's painted.
I would handle this in the easiest possible way, ignore it.