audit: check formula name against blacklisted names.

Library/Homebrew/dev-cmd/audit.rb

@@ -35,6 +35,7 @@ require "official_taps"
 require "cmd/search"
 require "cmd/style"
 require "date"
+require "blacklist"
 
 module Homebrew
   module_function
@@ -310,6 +311,10 @@ class FormulaAuditor
     name = formula.name
     full_name = formula.full_name
 
+    if blacklisted?(name)
+      problem "'#{name}' is blacklisted."
+    end
+
     if Formula.aliases.include? name
       problem "Formula name conflicts with existing aliases."
       return