// since the previous invocation and avoid redownloading information about it.
// Modules that are not redownloaded will be marked in the new output by
// setting the Reuse field to true. Normally the module cache provides this
// kind of reuse automatically; the -reuse flag can be useful on systems that
// do not preserve the module cache.
//
// For more about build flags, see 'go help build'.
//