pillowfight missing error variable assignment

https://github.com/couchbase/libcouchbase/blob/master/example/pillowfight.cc#L201

if (libcouchbase_enable_timings(instance) != LIBCOUCHBASE_SUCCESS)

{ std::cerr << "Failed to enable timings!: " << libcouchbase_strerror(instance, error) << std::endl; timings = false; }

Missing error = assignment here, so the error message printed here will be incorrect.