PFCOUNT: Mimic variadic API to other methods receiving N keys.

Author: djanowski

lib/redis.rb

@@ -2485,7 +2485,7 @@ def pfadd(key, member)
   # @return [Fixnum]
   def pfcount(*keys)
     synchronize do |client|
-      client.call([:pfcount] + keys.flatten(1))
+      client.call([:pfcount] + keys)
     end
   end
 

test/lint/hyper_log_log.rb

@@ -39,7 +39,7 @@ def test_variadic_pfcount
         assert_equal true, r.pfadd("{1}bar", "s1")
         assert_equal true, r.pfadd("{1}bar", "s2")
 
-        assert_equal 2, r.pfcount(["{1}foo", "{1}bar"])
+        assert_equal 2, r.pfcount("{1}foo", "{1}bar")
       end
     end