test_utils/test_main.c: satisfy -Wstrict-prototypes

diff --git a/test_utils/test_main.c b/test_utils/test_main.c
index afd077fc6d0bf4408e46661c9a1b2cc35c2fd615..fe330e5a052e99300aebf05493f64d0b19cd9e24 100644 (file)
--- a/test_utils/test_main.c
+++ b/test_utils/test_main.c
@@ -3581,7 +3581,7 @@ set_environment(const char *key, const char *value)
  * Enforce C locale for (sub)processes.
  */
 static void
-set_c_locale()
+set_c_locale(void)
 {
        static const char *lcs[] = {
                "LC_ADDRESS",