On Wed, 07 May 2014 13:39:06 GMT, Mike Parker wrote:

(...)
FWIW, in the description of the -h flag, the bit about "command specific help" didn't jump out at me until after I read your post here. dub commands just became much less arcane. Thanks!

I've added an explicit message now whenever a usage error occurs (3ec3c12). This obviously somehow needs to be made more prominent, as a number other people also didn't notice it in the past.