typo

src/core/ext/client_config/lb_policy_factory.h

@@ -54,7 +54,7 @@ typedef struct grpc_lb_policy_address_token {
 
 typedef struct grpc_lb_policy_args {
   grpc_resolved_addresses *addresses;
-  /* It not NULL, array of load balancing tokens associated with \a addresses,
+  /* If not NULL, array of load balancing tokens associated with \a addresses,
    * on a 1:1 correspondence. Some indices may be NULL for missing tokens. */
   grpc_lb_policy_address_token *tokens;
   grpc_client_channel_factory *client_channel_factory;