If STRING is longer than LENGTH, return a substring consisting of
the first LENGTH characters of STRING. If END is non-nil, return
-the last LENTGH characters instead."
+the last LENGTH characters instead."
(unless (natnump length)
(signal 'wrong-type-argument (list 'natnump length)))
(cond
is done.
If START is nil (or not present), the padding is done to the end
-of the string, and non-nil, padding is done to the start of the
-string."
+of the string, and if non-nil, padding is done to the start of
+the string."
(unless (natnump length)
(signal 'wrong-type-argument (list 'natnump length)))
(let ((pad-length (- length (length string))))