Rename retries and remove retry_max

app/services/concerns/exclusive_lease_lock.rb

@@ -3,15 +3,14 @@ module ExclusiveLeaseLock
 
   FailedToObtainLockError = Class.new(StandardError)
 
-  def in_lock(key, ttl: 1.minute, retry_max: 10, sleep_sec: 0.01.seconds)
+  def in_lock(key, ttl: 1.minute, retries: 10, sleep_sec: 0.01.seconds)
     lease = Gitlab::ExclusiveLease.new(key, timeout: ttl)
-    retry_count = 0
 
     until uuid = lease.try_obtain
       # Keep trying until we obtain the lease. To prevent hammering Redis too
       # much we'll wait for a bit.
       sleep(sleep_sec)
-      break if retry_max < (retry_count += 1)
+      break if (retries -= 1) < 0
     end
 
     raise FailedToObtainLockError, 'Failed to obtain a lock' unless uuid