pack-objects doc: treat output filename as opaque

After 1190a1a (pack-objects: name pack files after trailer hash,
2013-12-05), the SHA-1 used to determine the filename is calculated
differently.  Update the documentation to not guarantee anything more
than that the SHA-1 depends on the pack content somehow.

Hopefully this will discourage readers from depending on the old or
the new calculation.

Reported-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/Documentation/git-pack-objects.txt b/Documentation/git-pack-objects.txt
index d94edcd4b4fdd8bd57150bd0ad8f870a45e0249c..cdab9ed503a5adaace14b06863f31347725d06db 100644 (file)
--- a/Documentation/git-pack-objects.txt
+++ b/Documentation/git-pack-objects.txt
@@ -51,8 +51,7 @@ base-name::
        <base-name> to determine the name of the created file.
        When this option is used, the two files are written in
        <base-name>-<SHA-1>.{pack,idx} files.  <SHA-1> is a hash
-       of the sorted object names to make the resulting filename
-       based on the pack content, and written to the standard
+       based on the pack content and is written to the standard
        output of the command.
 
 --stdout::