tests: add missing printf attribute

Signed-off-by: David Lamparter <equinox@opensourcerouting.org>

diff --git a/tests/lib/test_nexthop_iter.c b/tests/lib/test_nexthop_iter.c
index f21f3bbb33d3117ec6a4c62c780f6512ef760ac4..a6995d13e80bc97a73e2cb0d7d3d203960f25261 100644 (file)
--- a/tests/lib/test_nexthop_iter.c
+++ b/tests/lib/test_nexthop_iter.c
@@ -41,6 +41,7 @@ static void str_append(char **buf, const char *repr)
        }
 }
 
+PRINTFRR(2, 3)
 static void str_appendf(char **buf, const char *format, ...)
 {
        va_list ap;