(Format Conversion Round-Trip): Improve previous change.

2 files changed, 7 insertions, 2 deletions

diff --git a/doc/lispref/ChangeLog b/doc/lispref/ChangeLog
index 636bac2cb1a..e0d465a0a73 100644
--- a/doc/lispref/ChangeLog
+++ b/doc/lispref/ChangeLog
@@ -1,3 +1,7 @@
+2008-11-28  Glenn Morris  <rgm@gnu.org>
+
+        * files.texi (Format Conversion Round-Trip): Improve previous change.
+
 2008-11-26  Chong Yidong  <cyd@stupidchicken.com>
 
         * modes.texi (Auto Major Mode): Fix example.
diff --git a/doc/lispref/files.texi b/doc/lispref/files.texi
index 8063daa470e..45b911fde9f 100644
--- a/doc/lispref/files.texi
+++ b/doc/lispref/files.texi
@@ -2985,8 +2985,9 @@ in the order of appearance in the list.
 This command writes the current buffer contents into the file
 @var{file} in format @var{format}, and makes that format the default
 for future saves of the buffer.  That is, it sets the buffer-local value
-of @code{buffer-file-format} to @var{format}, and replaces any existing
-elements (except any with a non-nil @var{preserve} flag; see above).
+of @code{buffer-file-format} to @var{format}.  It then appends any
+elements of the previous value with a non-nil @var{preserve} flag (see
+above), if they are not already present in the new value.
 The argument @var{format} is a list of format names.
 Except for the @var{format} argument, this command
 is similar to @code{write-file}.  In particular, @var{confirm} has the