Sync status lines 307,308 with nginx

This fixes openresty#87

Author: kapouer

src/ngx_http_srcache_util.c

@@ -39,12 +39,12 @@ static ngx_str_t ngx_http_status_lines[] = {
     ngx_string("302 Moved Temporarily"),
     ngx_string("303 See Other"),
     ngx_string("304 Not Modified"),
+    ngx_null_string,  /* "305 Use Proxy" */
+    ngx_null_string,  /* "306 unused" */
+    ngx_string("307 Temporary Redirect"),
+    ngx_string("308 Permanent Redirect"),
 
-    /* ngx_null_string, */  /* "305 Use Proxy" */
-    /* ngx_null_string, */  /* "306 unused" */
-    /* ngx_null_string, */  /* "307 Temporary Redirect" */
-
-#define NGX_HTTP_LAST_LEVEL_300  305
+#define NGX_HTTP_LAST_LEVEL_300  309
 #define NGX_HTTP_LEVEL_300       (NGX_HTTP_LAST_LEVEL_300 - 301)
 
     ngx_string("400 Bad Request"),