887240faf7
This is processed by hand in CommandObjectMultiword, and is undiscoverable, it doesn't work in all cases. Because it is a bare word, it can't really be extended w/o introducing the possibility of collisions as well. If we did want to do something like this we should add a --help flag to CommandObject. That way the feature would be consistent and documented. Differential Revision: https://reviews.llvm.org/D142067