now we test nginx 1.17.8 instead.

Author: agentzh

.travis.yml

@@ -29,7 +29,7 @@ env:
     - LUA_CMODULE_DIR=/lib
   matrix:
     - NGINX_VERSION=1.11.2
-    - NGINX_VERSION=1.9.15
+    - NGINX_VERSION=1.17.8
 
 before_install:
   - sudo cpanm --notest Test::Nginx > build.log 2>&1 || (cat build.log && exit 1)