[master] 52d7781 mark another cache_param issue

[Nils Goroll]

commit 52d77816664d76d79e32531bc818ff6f9937d32b
Author: Nils Goroll <nils.goroll at uplex.de>
Date:   Thu Nov 9 14:46:53 2017 +0100

    mark another cache_param issue

diff --git a/bin/varnishd/cache/cache.h b/bin/varnishd/cache/cache.h
index e920268..29a6923 100644
--- a/bin/varnishd/cache/cache.h
+++ b/bin/varnishd/cache/cache.h
@@ -989,6 +989,10 @@ Tlen(const txt t)
  */
 #define W_TIM_real(w) ((w)->lastused = VTIM_real())
 
+/*
+ * XXX should cache.h refer to cache_param if common_param.h
+ * is not in $DIST ?
+ */
 #define FEATURE(x)	COM_FEATURE(cache_param->feature_bits, x)
 #define DO_DEBUG(x)	COM_DO_DEBUG(cache_param->debug_bits, x)