Fix typo in config example for riak client

pidq.config.example

@@ -5,21 +5,21 @@
          {pools, [
                   [{name, "rc8081"},
                    {max_count, 5},
-                   {init_count, 3},
+                   {init_count, 2},
                    {start_mfa,
-                    {riak_pb_socket, start_link, ["localhost", 8081]}}],
+                    {riakc_pb_socket, start_link, ["localhost", 8081]}}],
 
                   [{name, "rc8082"},
                    {max_count, 5},
-                   {init_count, 3},
+                   {init_count, 2},
                    {start_mfa,
-                    {riak_pb_socket, start_link, ["localhost", 8082]}}],
+                    {riakc_pb_socket, start_link, ["localhost", 8082]}}],
 
                   [{name, "rc8083"},
                    {max_count, 5},
-                   {init_count, 3},
+                   {init_count, 2},
                    {start_mfa,
-                    {riak_pb_socket, start_link, ["localhost", 8083]}}]
+                    {riakc_pb_socket, start_link, ["localhost", 8083]}}]
                  ]}
         ]}
 ].