Update redis release URL

Author: byroot

bin/build

@@ -38,7 +38,7 @@ class Builder
   end
 
   def tarball_url
-    "https://github.com/antirez/redis/archive/#{@redis_branch}.tar.gz"
+    "https://github.com/redis/redis/archive/#{@redis_branch}.tar.gz"
   end
 
   def build