[master] 99a3ee6a0 sensible lower bound for vcl_cooldown parameter

[Nils Goroll]

commit 99a3ee6a0dbeb99c4325d2d2a1cbe697782d1454
Author: Nils Goroll <nils.goroll at uplex.de>
Date:   Sat Nov 16 13:04:04 2019 +0100

    sensible lower bound for vcl_cooldown parameter
    
    Fixes #3135

diff --git a/include/tbl/params.h b/include/tbl/params.h
index f8c9e6de9..272829a10 100644
--- a/include/tbl/params.h
+++ b/include/tbl/params.h
@@ -1522,7 +1522,7 @@ PARAM(
 PARAM(
 	/* name */	vcl_cooldown,
 	/* typ */	timeout,
-	/* min */	"0.000",
+	/* min */	"1.000",
 	/* max */	NULL,
 	/* default */	"600.000",
 	/* units */	"seconds",