Fix standard

Author: ngan

lib/big_rails/redis/builder.rb

@@ -40,7 +40,7 @@ def build_redis_client(url:, **redis_options)
 
         def ensure_connection_pool_added!
           require "connection_pool"
-        rescue LoadError => e
+        rescue LoadError
           warn "You don't have connection_pool installed in your application. Please add it to your Gemfile and run bundle install"
           raise
         end

lib/big_rails/redis/registry.rb

@@ -5,6 +5,7 @@ module Redis
     class Registry
       class UnknownConnection < StandardError
       end
+
       class VerificationError < StandardError
       end