sha1_file.c: use ALLOC_GROW() in pretend_sha1_file()

diff --git a/Documentation/diff-options.txt b/Documentation/diff-options.txt
index bbed2cd79c6ebbb95e3b66b5f1ccaa3762d9dfce..9b37b2a10b94449b73aeceadae175d52ee081e4e 100644 (file)
--- a/Documentation/diff-options.txt
+++ b/Documentation/diff-options.txt
@@ -432,6 +432,9 @@ endif::git-format-patch[]
 -O<orderfile>::
        Output the patch in the order specified in the
        <orderfile>, which has one shell glob pattern per line.
+       This overrides the `diff.orderfile` configuration variable
+       (see linkgit:git-config[1]).  To cancel `diff.orderfile`,
+       use `-O/dev/null`.
 
 ifndef::git-format-patch[]
 -R::