Constify WS_Free()

git-svn-id: http://www.varnish-cache.org/svn/trunk/varnish-cache@2965 d4fa192b-c00b-0410-8231-f00ffab90ce4

bin/varnishd/cache.h

@@ -602,7 +602,7 @@ void WS_Reset(struct ws *ws, char *p);
 char *WS_Alloc(struct ws *ws, unsigned bytes);
 char *WS_Dup(struct ws *ws, const char *);
 char *WS_Snapshot(struct ws *ws);
-unsigned WS_Free(struct ws *ws);
+unsigned WS_Free(const struct ws *ws);
 
 /* rfc2616.c */
 int RFC2616_cache_policy(const struct sess *sp, const struct http *hp);

bin/varnishd/cache_ws.c

@@ -130,7 +130,7 @@ WS_Dup(struct ws *ws, const char *s)
 }
 
 unsigned
-WS_Free(struct ws *ws)
+WS_Free(const struct ws *ws)
 {
 
 	WS_Assert(ws);