opoo function for warning messages

Library/Homebrew/formula.rb

@@ -130,7 +130,7 @@ class AbstractFormula
         if @md5 and not @md5.empty?
           raise "MD5 mismatch: #{md5}" unless md5 == @md5.downcase
         else
-          ohai "Warning: Formula does not provide an MD5 hash."
+          opoo "Formula does not provide an MD5 hash."
         end
 
         # we make an additional subdirectory so know exactly what we are

Library/Homebrew/utils.rb

@@ -19,3 +19,8 @@ def ohai title
   n=`tput cols`.strip.to_i-4
   puts "\033[0;34m==>\033[0;0;1m #{title[0,n]}\033[0;0m"
 end
+
+# shows a warning in delicious pink
+def opoo warning
+  puts "WARNING \033[1;35m#{warning}\033[0;0m"
+end