brew tap by itself handles dashes in usernames

This stuff sucks. I'd like to just replace the dash with a directory division or tilde character. But this makes the code even more complicated, unless we can figure out how to migrate the taps.

Library/Homebrew/cmd/tap.rb

@@ -4,7 +4,8 @@ module Homebrew extend self
     if ARGV.empty?
       tapd = HOMEBREW_LIBRARY/"Taps"
       tapd.children.each do |tap|
-        puts tap.basename.sub('-', '/') if (tap/'.git').directory?
+        # only replace the *last* dash: yes, tap filenames suck
+        puts tap.basename.to_s.reverse.sub('-', '/').reverse if (tap/'.git').directory?
       end if tapd.directory?
     elsif ARGV.first == "--repair"
       repair_taps