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-rw-r--r--builtin/diff-files.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/builtin/diff-files.c b/builtin/diff-files.c
index 018011f29e..7f4f9bcb3e 100644
--- a/builtin/diff-files.c
+++ b/builtin/diff-files.c
@@ -17,7 +17,10 @@ static const char diff_files_usage[] =
"\n"
COMMON_DIFF_OPTIONS_HELP;
-int cmd_diff_files(int argc, const char **argv, const char *prefix)
+int cmd_diff_files(int argc,
+ const char **argv,
+ const char *prefix,
+ struct repository *repo UNUSED)
{
struct rev_info rev;
int result;