[master] d13a51f1b avoid >= 0 comparison for enum which may be unsigned

[Nils Goroll]

commit d13a51f1bb1c16f12fbfdfaaf0a333609528257f
Author: Nils Goroll <nils.goroll at uplex.de>
Date:   Sat May 30 12:58:55 2020 +0200

    avoid >= 0 comparison for enum which may be unsigned
    
    depending on the compiler's mood

diff --git a/bin/varnishd/mgt/mgt.h b/bin/varnishd/mgt/mgt.h
index 4973abb4d..294b10a7f 100644
--- a/bin/varnishd/mgt/mgt.h
+++ b/bin/varnishd/mgt/mgt.h
@@ -110,10 +110,7 @@ enum jail_master_e {
 	JAIL_MASTER_KILL,
 };
 
-#define ASSERT_JAIL_MASTER(x) do {		\
-	assert(x >= JAIL_MASTER_LOW);		\
-	assert(x <= JAIL_MASTER_KILL);		\
-	} while (0)
+#define ASSERT_JAIL_MASTER(x) assert(x <= JAIL_MASTER_KILL)
 
 enum jail_subproc_e {
 	JAIL_SUBPROC_VCC = JAIL_MASTER_KILL + 1,