(Fset_text_properties): Doc fix.

diff --git a/src/textprop.c b/src/textprop.c
index 5342cc2380f6b13cd59dfe6dcb3d81ae30ef8810..b29bca295a90cc2b70df8061ef1ad494ea6b56b3 100644 (file)
--- a/src/textprop.c
+++ b/src/textprop.c
@@ -1217,7 +1217,8 @@ DEFUN ("set-text-properties", Fset_text_properties,
   "Completely replace properties of text from START to END.\n\
 The third argument PROPERTIES is the new property list.\n\
 The optional fourth argument, OBJECT,\n\
-is the string or buffer containing the text.")
+is the string or buffer containing the text.
+If OBJECT is omitted or nil, it defaults to the current buffer.")
   (start, end, properties, object)
      Lisp_Object start, end, properties, object;
 {