FS-11931: [mod_http_cache] Fix zero-length gnu_printf format string

diff --git a/src/mod/applications/mod_http_cache/test/test_aws.c b/src/mod/applications/mod_http_cache/test/test_aws.c
index 8641a080cac32a8bac37da0cfa5401fcd215b0c7..615f3364725f25494da7064bdde747c60e73b73a 100644 (file)
--- a/src/mod/applications/mod_http_cache/test/test_aws.c
+++ b/src/mod/applications/mod_http_cache/test/test_aws.c
@@ -101,7 +101,7 @@ FST_TEST_BEGIN(test_parse_url)
        fst_check(bucket == NULL);
        fst_check(object == NULL);
 
-       snprintf(url, sizeof(url), "");
+       snprintf(url, sizeof(url), "%s", "");
        parse_url(url, NULL, "s3", &bucket, &object);
        fst_check(bucket == NULL);
        fst_check(object == NULL);