I've released a minor update to Convert to FLAC. This fixes a cosmetic bug that could result in inconsistent status output when converting multiple files concurrently (ie., when using the -t option). I also added a -V option to simply display the version of convtoflac and then exit; I'll be adding this to all of my scripts eventually.
Users w/ multi-core or multi-processor systems are encouraged to upgrade.
For more information:
Convert to FLAC home page and downloads
Convert to FLAC ChangeLog