linuxbrewでbrew install go

go.rb.diff

diff --git a/Library/Formula/go.rb b/Library/Formula/go.rb
index d085bb1..33d71db 100644
--- a/Library/Formula/go.rb
+++ b/Library/Formula/go.rb
@@ -45,7 +45,7 @@ class Go < Formula
         ['darwin',  ['386', 'amd64']],
       ]
     else
-      targets = [['darwin', ['']]]
+      targets = [['linux', ['']]]
     end
 
     # The version check is due to:
@@ -54,7 +54,7 @@ class Go < Formula
 
     cd 'src' do
       targets.each do |os, archs|
-        cgo_enabled = os == 'darwin' && build.with?('cgo') ? "1" : "0"
+        cgo_enabled = os == 'linux' && build.with?('cgo') ? "1" : "0"
         archs.each do |arch|
           ENV['GOROOT_FINAL'] = libexec
           ENV['GOOS']         = os