[master] c5adaa3b6 Polish

[Dridi Boukelmoune]

commit c5adaa3b6ad51bab88dc21fca45210b84d7315f3
Author: Dridi Boukelmoune <dridi.boukelmoune at gmail.com>
Date:   Wed Oct 16 10:11:18 2019 +0200

    Polish

diff --git a/bin/varnishd/mgt/mgt_pool.c b/bin/varnishd/mgt/mgt_pool.c
index 98ad42c3c..da2eab1ca 100644
--- a/bin/varnishd/mgt/mgt_pool.c
+++ b/bin/varnishd/mgt/mgt_pool.c
@@ -121,7 +121,7 @@ struct parspec WRK_parspec[] = {
 		DELAYED_EFFECT,
 		"100", "threads" },
 	{ "thread_pool_reserve", tweak_uint, &mgt_param.wthread_reserve,
-		0, NULL,
+		NULL, NULL,
 		"The number of worker threads reserved for vital tasks "
 		"in each pool.\n"
 		"\n"