diff --git a/builtin-update-index.c b/builtin-update-index.c
index 92beaaf4b3ca5520a9af27bde7f15dda46d80197..a6b7f2d6361fc1e8ea9713082affc72362f08d76 100644 (file)
--- a/builtin-update-index.c
+++ b/builtin-update-index.c
#define MARK_VALID 1
#define UNMARK_VALID 2
+__attribute__((format (printf, 1, 2)))
static void report(const char *fmt, ...)
{
va_list vp;