; * src/fns.c (Fmapconcat): Doc fix (bug#76242).

diff --git a/src/fns.c b/src/fns.c
index bee44b222c5e6bf520214e050965321a345450a8..a37c651c793c1836212e02f0d247b788406de884 100644 (file)
--- a/src/fns.c
+++ b/src/fns.c
@@ -3402,7 +3402,8 @@ characters; nil stands for the empty string.
 
 FUNCTION must be a function of one argument, and must return a value
   that is a sequence of characters: either a string, or a vector or
-  list of numbers that are valid character codepoints.  */)
+  list of numbers that are valid character codepoints; nil is treated
+  as an empty string.  */)
   (Lisp_Object function, Lisp_Object sequence, Lisp_Object separator)
 {
   USE_SAFE_ALLOCA;