Tests: adjusted proxy.t proxy_read_timeout for slow hosts.
diff --git a/proxy.t b/proxy.t
index 49b5d7a..1388176 100644
--- a/proxy.t
+++ b/proxy.t
@@ -57,13 +57,13 @@
 
         location / {
             proxy_pass http://127.0.0.1:8081;
-            proxy_read_timeout 1s;
+            proxy_read_timeout 2s;
             proxy_connect_timeout 2s;
         }
 
         location /var {
             proxy_pass http://$arg_b;
-            proxy_read_timeout 1s;
+            proxy_read_timeout 2s;
             proxy_connect_timeout 2s;
         }