Adjust BOTTLE_EXTNAME_RX for :snow_leopard_32

Library/Homebrew/extend/pathname.rb

@@ -5,7 +5,7 @@ require 'mach'
 class Pathname
   include MachO
 
-  BOTTLE_EXTNAME_RX = /(\.[a-z_]+\.bottle\.(\d+\.)?tar\.gz)$/
+  BOTTLE_EXTNAME_RX = /(\.[a-z_]+(32)?\.bottle\.(\d+\.)?tar\.gz)$/
 
   def install *sources
     results = []