imagedephi nosuchcommand --help isn't useful

[manthey]

When you mistype a subcommand, adding --help doesn't help. Specifically, if you type something like imagedephi redact indir outdir, it tells you there is no redact command. Adding --help (or, to be common in windows programs, /?) should tell you what the available commands are OR give the generic help. Instead it says Try 'imagedephi.exe --help' for help., which makes it an extra hop to get help.