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-rw-r--r--lisp/register.el6
1 files changed, 4 insertions, 2 deletions
diff --git a/lisp/register.el b/lisp/register.el
index 8185ae4bc44..0ba6a9addd6 100644
--- a/lisp/register.el
+++ b/lisp/register.el
@@ -304,8 +304,10 @@ START and END are buffer positions indicating what to prepend."
(defun copy-rectangle-to-register (register start end &optional delete-flag)
"Copy rectangular region into register REGISTER.
-With prefix arg, delete as well.
-Called from program, takes four args: REGISTER, START, END and DELETE-FLAG.
+With prefix arg, delete as well. To insert this register
+in the buffer, use \\[insert-register].
+
+Called from a program, takes four args: REGISTER, START, END and DELETE-FLAG.
START and END are buffer positions giving two corners of rectangle."
(interactive "cCopy rectangle to register: \nr\nP")
(set-register register