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-rw-r--r--trace.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/trace.c b/trace.c
index 5ec0e3bd16..3d744d1d4d 100644
--- a/trace.c
+++ b/trace.c
@@ -75,6 +75,7 @@ static void trace_vprintf(const char *key, const char *fmt, va_list ap)
strbuf_release(&buf);
}
+__attribute__((format (printf, 2, 3)))
static void trace_printf_key(const char *key, const char *fmt, ...)
{
va_list ap;