Upstream: fixed comments after 13f8dec720b5.

The fields "uri", "location", and "url" from ngx_http_upstream_conf_t
moved to ngx_http_proxy_loc_conf_t and ngx_http_proxy_vars_t, reflect
this change in create_loc_conf comments.
diff --git a/src/http/modules/ngx_http_fastcgi_module.c b/src/http/modules/ngx_http_fastcgi_module.c
index c3f5c4a..bc43f53 100644
--- a/src/http/modules/ngx_http_fastcgi_module.c
+++ b/src/http/modules/ngx_http_fastcgi_module.c
@@ -2706,8 +2706,6 @@
      *     conf->upstream.cache_methods = 0;
      *     conf->upstream.temp_path = NULL;
      *     conf->upstream.hide_headers_hash = { NULL, 0 };
-     *     conf->upstream.uri = { 0, NULL };
-     *     conf->upstream.location = NULL;
      *     conf->upstream.store_lengths = NULL;
      *     conf->upstream.store_values = NULL;
      *
diff --git a/src/http/modules/ngx_http_memcached_module.c b/src/http/modules/ngx_http_memcached_module.c
index 69f28fa..82fa713 100644
--- a/src/http/modules/ngx_http_memcached_module.c
+++ b/src/http/modules/ngx_http_memcached_module.c
@@ -592,8 +592,6 @@
      *     conf->upstream.bufs.num = 0;
      *     conf->upstream.next_upstream = 0;
      *     conf->upstream.temp_path = NULL;
-     *     conf->upstream.uri = { 0, NULL };
-     *     conf->upstream.location = NULL;
      */
 
     conf->upstream.local = NGX_CONF_UNSET_PTR;
diff --git a/src/http/modules/ngx_http_proxy_module.c b/src/http/modules/ngx_http_proxy_module.c
index 9e4ea94..c9ad638 100644
--- a/src/http/modules/ngx_http_proxy_module.c
+++ b/src/http/modules/ngx_http_proxy_module.c
@@ -2797,13 +2797,13 @@
      *     conf->upstream.cache_methods = 0;
      *     conf->upstream.temp_path = NULL;
      *     conf->upstream.hide_headers_hash = { NULL, 0 };
-     *     conf->upstream.uri = { 0, NULL };
-     *     conf->upstream.location = NULL;
      *     conf->upstream.store_lengths = NULL;
      *     conf->upstream.store_values = NULL;
      *     conf->upstream.ssl_name = NULL;
      *
      *     conf->method = NULL;
+     *     conf->location = NULL;
+     *     conf->url = { 0, NULL };
      *     conf->headers_source = NULL;
      *     conf->headers.lengths = NULL;
      *     conf->headers.values = NULL;