[master] 60f5a0c09 Mention drop_pools for brave users

[Dridi Boukelmoune]

commit 60f5a0c09dcb1dba0ad92ca136f513fa4021462d
Author: Dridi Boukelmoune <dridi.boukelmoune at gmail.com>
Date:   Fri Mar 20 16:18:23 2020 +0100

    Mention drop_pools for brave users

diff --git a/bin/varnishd/mgt/mgt_pool.c b/bin/varnishd/mgt/mgt_pool.c
index a574cd17a..a2e73245f 100644
--- a/bin/varnishd/mgt/mgt_pool.c
+++ b/bin/varnishd/mgt/mgt_pool.c
@@ -103,7 +103,8 @@ struct parspec WRK_parspec[] = {
 		"pool for each CPU is most likely detrimental to performance.\n"
 		"\n"
 		"Can be increased on the fly, but decreases require a "
-		"restart to take effect.",
+		"restart to take effect, unless the drop_pools experimental "
+		"debug flag is set.",
 		EXPERIMENTAL | DELAYED_EFFECT,
 		NULL, "defined when Varnish is built" },
 	{ "thread_pool_max", tweak_thread_pool_max, &mgt_param.wthread_max,