diff --git a/src/core/mount.c b/src/core/mount.c
index a6460287ce..c6100b0b0a 100644
--- a/src/core/mount.c
+++ b/src/core/mount.c
@@ -1832,7 +1832,7 @@ static int mount_setup_unit(
         assert(fstype);
 
         /* Ignore API and credential mount points. They should never be referenced in dependencies ever.
-         * Also check the comment for mount_point_is_credentials. */
+         * Also check the comment for mount_point_is_credentials(). */
         if (mount_point_is_api(where) || mount_point_ignore(where) || mount_point_is_credentials(m, where))
                 return 0;
 
diff --git a/src/systemd/sd-json.h b/src/systemd/sd-json.h
index d86f16106e..db37821f3a 100644
--- a/src/systemd/sd-json.h
+++ b/src/systemd/sd-json.h
@@ -97,7 +97,7 @@ void sd_json_variant_unref_many(sd_json_variant **array, size_t n);
 
 _SD_DEFINE_POINTER_CLEANUP_FUNC(sd_json_variant, sd_json_variant_unref);
 
-const char *sd_json_variant_string(sd_json_variant *v);
+const char* sd_json_variant_string(sd_json_variant *v);
 int64_t sd_json_variant_integer(sd_json_variant *v);
 uint64_t sd_json_variant_unsigned(sd_json_variant *v);
 double sd_json_variant_real(sd_json_variant *v);
@@ -329,7 +329,7 @@ int sd_json_variant_strv(sd_json_variant *v, char ***ret);
 int sd_json_variant_unbase64(sd_json_variant *v, void **ret, size_t *ret_size);
 int sd_json_variant_unhex(sd_json_variant *v, void **ret, size_t *ret_size);
 
-const char *sd_json_variant_type_to_string(sd_json_variant_type_t t);
+const char* sd_json_variant_type_to_string(sd_json_variant_type_t t);
 sd_json_variant_type_t sd_json_variant_type_from_string(const char *s);
 
 _SD_END_DECLARATIONS;
diff --git a/test/test-network/systemd-networkd-tests.py b/test/test-network/systemd-networkd-tests.py
index 92cb07f11c..0355c7aca1 100755
--- a/test/test-network/systemd-networkd-tests.py
+++ b/test/test-network/systemd-networkd-tests.py
@@ -5824,6 +5824,8 @@ class NetworkdRATests(unittest.TestCase, Utilities):
         self.assertIn('pref high', output)
         self.assertNotIn('pref low', output)
 
+    # radvd supports captive portal since v2.20.
+    # https://github.com/radvd-project/radvd/commit/791179a7f730decbddb2290ef0e34aa85d71b1bc
     @unittest.skipUnless(radvd_check_config('captive-portal.conf'), "Installed radvd doesn't support captive portals")
     def test_captive_portal(self):
         copy_network_unit('25-veth-client.netdev',