mxcl/homebrew — comment on commit d3f35542992c4978525b1eaaa0255c92f1e830e0
File: Library/Formula/salt.rb line 83
By RuiPereira:

This `s` was a way to access the subbrew instance later on, in `s.respond_to?`. I'm not proficient enough in ruby to know a better way to do it (some kind of "self.respond_to" ?), but as it is the install_subbrew code is broken.