;; expression leads to the equivalent implementation that if SEPARATORS
;; is defaulted, OMIT-NULLS is treated as t.
(defun split-string (string &optional separators omit-nulls)
- "Splits STRING into substrings bounded by matches for SEPARATORS.
+ "Split STRING into substrings bounded by matches for SEPARATORS.
The beginning and end of STRING, and each match for SEPARATORS, are
splitting points. The substrings matching SEPARATORS are removed, and