- s-center len sprocedure
If s is shorter than len, pad it with spaces so it is centered.
(s-center 5 "a") ;; => " a " (s-center 5 "ab") ;; => " ab " (s-center 1 "abc") ;; => "abc"
If s is shorter than len, pad it with spaces so it is centered.
(s-center 5 "a") ;; => " a " (s-center 5 "ab") ;; => " ab " (s-center 1 "abc") ;; => "abc"