Fix off-by-one NULL termination in array

Note: the client name length test still fails, this is a different issue.

tests/test.cpp

@@ -753,7 +753,7 @@ int main (int argc, char *argv[])
         client_name3[i] = 'A';
     }
     // And last one is the terminating '0'
-    client_name3[jack_client_name_size()] = 0; 
+    client_name3[jack_client_name_size()-1] = 0;
     Log("trying to register a new jackd client with maximum possible client name size...\n", client_name3);
     client2 = jack_client_open(client_name3, jack_options, &status, server_name);
     if (client2 != NULL) {
@@ -944,7 +944,7 @@ int main (int argc, char *argv[])
         port_name3[i] = 'A';
     }
     // And last one is the terminating '0'
-    port_name3[short_port_size_max] = 0;
+    port_name3[short_port_size_max-1] = 0;
     jack_port_t * test_max_port = jack_port_register(client1, port_name3,
                                       JACK_DEFAULT_AUDIO_TYPE,
                                       JackPortIsOutput, 0);