I'm gonna move a stud over to help accomodate a light fixture that I worked
on this weekend.

The way I see it, if I move the stud over 4", then put another stud 4" to
the other side of the where the first stud was originally I should have my
bases covered. Should I use a stringer between the studs if I do this?

I know, moving a stud to work on a light seems like overkill but if I move
the light I'd have to rerun the wiring, repair the siding where the fixture
hole is, when I could just remove some vaneer paneling in a closet and move
a stud 4" then put the paneling back up.

Am I just being crazy here? Seems like moving a stud would be simple to
do - simpler than repairing cedar siding planks and tearing out a wall to
reroute a wiring run.