* lisp/startup.el (mail-host-address): Doc fix.

2 files changed, 7 insertions, 1 deletions

diff --git a/lisp/ChangeLog b/lisp/ChangeLog
index 93ae0f12862..ca07cc36062 100644
--- a/lisp/ChangeLog
+++ b/lisp/ChangeLog
@@ -1,3 +1,7 @@
+2012-03-27  Glenn Morris  <rgm@gnu.org>
+
+        * startup.el (mail-host-address): Doc fix.
+
 2012-03-26  Stefan Monnier  <monnier@iro.umontreal.ca>
 
         * emacs-lisp/bytecomp.el (byte-compile-constants-vector): Allow more
diff --git a/lisp/startup.el b/lisp/startup.el
index 57d7a74e5ec..37e4f550dcd 100644
--- a/lisp/startup.el
+++ b/lisp/startup.el
@@ -339,7 +339,9 @@ this variable usefully is to set it while building and dumping Emacs."
           (error "Customizing `site-run-file' does not work")))
 
 (defcustom mail-host-address nil
-  "Name of this machine, for purposes of naming users."
+  "Name of this machine, for purposes of naming users.
+If non-nil, Emacs uses this instead of `system-name' when constructing
+email addresses."
   :type '(choice (const nil) string)
   :group 'mail)