Fix regression

lib/sidekiq/limit_fetch.rb

@@ -37,6 +37,7 @@ class Sidekiq::LimitFetch
   end
 
   def redis_blpop(*args)
+    return if args.size < 2
     Sidekiq.redis {|it| it.blpop *args }
   end
 end

spec/sidekiq/limit_fetch/global/monitor_spec.rb

@@ -3,7 +3,7 @@ require 'spec_helper'
 describe Sidekiq::LimitFetch::Global::Monitor do
   let(:global) { true }
   let(:monitor) { described_class.start! ttl, timeout }
-  let(:ttl) { 2 }
+  let(:ttl) { 3 }
   let(:queue) { Sidekiq::Queue[name] }
   let(:name) { 'default' }
 
@@ -22,7 +22,7 @@ describe Sidekiq::LimitFetch::Global::Monitor do
       2.times { queue.acquire }
       described_class.send(:invalidate_old_processors)
       queue.busy.should == 2
-      sleep 4
+      sleep 5
       described_class.send(:invalidate_old_processors)
       queue.busy.should == 0
     end

spec/spec_helper.rb

@@ -10,6 +10,7 @@ RSpec.configure do |config|
         it.del "limit_fetch:limit:#{queue}"
         it.del "limit_fetch:busy:#{queue}"
         it.del "limit_fetch:pause:#{queue}"
+        it.del "limit_fetch:block:#{queue}"
       end
 
       clean_redis.call(name) if defined?(name)