A couple of minor typos in C++ API reference examples

In the example for lcb_get_server_list:

lcb_t instance;
...
const char *const *servers = lcb_get_server_list(tmphandle);

"tmphandle" should match the name of the lcb_t object, i.e. "instance" - tmphandle isn't defined in the example.

and in the example for lcb_set_configuration_callback:

fprintf(stdout, "Received new cluster configuration\n");
break;

case LCB_CONFIGURATION_CHANGED:
fprintf(stderr, "Received cluster change notification0);
break;

case LCB_CONFIGURATION_UNCHANGED:
fprintf(stderr, "Received cluster notification0);
break;
default:
fprintf(stderr, "Unknown configuration type received0);

The three strings that end in '0);' are syntax errors and need to end like the first one in '\n");'