Rename refresh_brew.rb to update.rb

I didn't change the class name, it's clear from the context where it is used what it does. However when just looking at files to figure out the nature of Homebrew I believe in clear naming.

Otherwise funny names earn you points.

1 files changed, 1 insertions, 1 deletions

diff --git a/bin/brew b/bin/brew
index e2e42d2b7..98ae9d8cf 100755
--- a/bin/brew
+++ b/bin/brew
@@ -111,7 +111,7 @@ begin
 
 
     when 'up', 'update'
-      require 'refresh_brew'
+      require 'update'
       updater = RefreshBrew.new
       old_revision = updater.current_revision
       unless updater.update_from_masterbrew!