Increas shmem size to 8M

git-svn-id: http://www.varnish-cache.org/svn/trunk@341 d4fa192b-c00b-0410-8231-f00ffab90ce4

bin/varnishd/varnishd.c

@@ -530,7 +530,7 @@ main(int argc, char *argv[])
 	 */
 	open_tcp(portnumber);
 
-	VSL_MgtInit(SHMLOG_FILENAME, 1024*1024);
+	VSL_MgtInit(SHMLOG_FILENAME, 8*1024*1024);
 
 	testme();