From 0463357392471f58ccd2c7f39cafabd8472e129b Mon Sep 17 00:00:00 2001
From: Simon McVittie <smcv@debian.org>
Date: Mon, 9 Jan 2017 13:58:58 +0000
Subject: [PATCH] git: don't redundantly pass "--" to git_sha1

git_sha1 already puts "--" before its arguments, so

    git_sha1_file($dir, 'doc/index.mdwn')

would have incorrectly invoked

    git rev-list --max-count=1 HEAD -- -- doc/index.mdwn

If there is no file in the wiki named "--", that's harmless, because
it merely names the latest revision in which either "--" or
"doc/index.mdwn" changed. However, it could return incorrect results
if there is somehow a file named "--".
---
 IkiWiki/Plugin/git.pm | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/IkiWiki/Plugin/git.pm b/IkiWiki/Plugin/git.pm
index 23b99151e..2bc250052 100644
--- a/IkiWiki/Plugin/git.pm
+++ b/IkiWiki/Plugin/git.pm
@@ -578,7 +578,7 @@ sub rcs_find_changes ($) {
 sub git_sha1_file ($$) {
 	my $dir=shift;
 	my $file=shift;
-	return git_sha1($dir, "--", $file);
+	return git_sha1($dir, $file);
 }
 
 sub git_sha1 ($@) {