fuzz-link-parser: use ASSERT_OK() and friends

Replace assert_se() with the typed ASSERT_* macros, so that a failing
assertion logs the values involved.

src/udev/net/fuzz-link-parser.c

@@ -3,6 +3,7 @@
 #include "fd-util.h"
 #include "fuzz.h"
 #include "link-config.h"
+#include "tests.h"
 #include "tmpfile-util.h"
 
 int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
@@ -15,12 +16,12 @@ int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
 
         fuzz_setup_logging();
 
-        assert_se(fmkostemp_safe(filename, "r+", &f) == 0);
+        ASSERT_OK_ZERO(fmkostemp_safe(filename, "r+", &f));
         if (size != 0)
-                assert_se(fwrite(data, size, 1, f) == 1);
+                ASSERT_EQ(fwrite(data, size, 1, f), (size_t) 1);
 
         fflush(f);
-        assert_se(link_config_ctx_new(&ctx) >= 0);
+        ASSERT_OK(link_config_ctx_new(&ctx));
         (void) link_load_one(ctx, filename);
         return 0;
 }