Bug#35732000 wrong error message if existing socket-path is not readable

Post-push fix: fixing the new test failing on MacOS due to a different
error message on that OS.

Change-Id: I14f0dc5115b365a3d85fe27fc3c27e6b442cf8dc

Author: Andrzej Religa

router/tests/component/test_routing.cc

@@ -1148,8 +1148,11 @@ TEST_F(RouterRoutingTest, named_socket_fails_with_socket_is_not_readable) {
   ASSERT_NO_THROW(router.wait_for_exit());
 
   EXPECT_THAT(router.get_logfile_content(),
-              ::testing::HasSubstr(
-                  "is bound by another process failed: Permission denied"));
+              ::testing::AnyOf(
+                  ::testing::HasSubstr(
+                      "is bound by another process failed: Permission denied"),
+                  ::testing::HasSubstr("is bound by another process failed: "
+                                       "Socket operation on non-socket")));
 
   // check if the file still exists and hasn't been deleted
   EXPECT_EQ(access(socket_file.c_str(), F_OK), 0);