[nomaster] SI-7652 Bad tools fails loudly
[nomaster] SI-7652 Bad tools fails loudly

A brief message is all that's required to
alleviate the look of consternation on the
face of your user.

shimib/scala,jvican/scala,felixmulder/scala,lrytz/scala,lrytz/scala,felixmulder/scala,lrytz/scala,scala/scala,felixmulder/scala,felixmulder/scala,shimib/scala,martijnhoekstra/scala,slothspot/scala,shimib/scala,shimib/scala,martijnhoekstra/scala,martijnhoekstra/scala,scala/scala,jvican/scala,lrytz/scala,jvican/scala,slothspot/scala,slothspot/scala,scala/scala,lrytz/scala,martijnhoekstra/scala,scala/scala,martijnhoekstra/scala,lrytz/scala,shimib/scala,slothspot/scala,scala/scala,martijnhoekstra/scala,jvican/scala,felixmulder/scala,slothspot/scala,slothspot/scala,felixmulder/scala,scala/scala,felixmulder/scala,jvican/scala,slothspot/scala,jvican/scala,shimib/scala,jvican/scala