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-rw-r--r--lisp/mail/rmailout.el1
1 files changed, 1 insertions, 0 deletions
diff --git a/lisp/mail/rmailout.el b/lisp/mail/rmailout.el
index 94af7ecca2..3e43ddb78c 100644
--- a/lisp/mail/rmailout.el
+++ b/lisp/mail/rmailout.el
@@ -30,6 +30,7 @@
(defvar rmail-output-file-alist nil
"*Alist matching regexps to suggested output Rmail files.
This is a list of elements of the form (REGEXP . NAME-EXP).
+The suggestion is taken if REGEXP matches anywhere in the message buffer.
NAME-EXP may be a string constant giving the file name to use,
or more generally it may be any kind of expression that returns
a file name as a string.")