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-rw-r--r--actioncable/lib/action_cable/subscription_adapter/subscriber_map.rb2
1 files changed, 1 insertions, 1 deletions
diff --git a/actioncable/lib/action_cable/subscription_adapter/subscriber_map.rb b/actioncable/lib/action_cable/subscription_adapter/subscriber_map.rb
index 4ec513e3ba..4cce86dcca 100644
--- a/actioncable/lib/action_cable/subscription_adapter/subscriber_map.rb
+++ b/actioncable/lib/action_cable/subscription_adapter/subscriber_map.rb
@@ -2,7 +2,7 @@ module ActionCable
module SubscriptionAdapter
class SubscriberMap
def initialize
- @subscribers = Hash.new { |h,k| h[k] = [] }
+ @subscribers = Hash.new { |h, k| h[k] = [] }
@sync = Mutex.new
end