travis-ci: enabled openssl-1.1.0g builds.

Signed-off-by: Yichun Zhang (agentzh) <agentzh@gmail.com>

Author: chipitsine

.travis.yml

@@ -49,7 +49,7 @@ env:
     - TEST_NGINX_SLEEP=0.006
   matrix:
     - NGINX_VERSION=1.13.6 OPENSSL_VER=1.0.2n OPENSSL_PATCH_VER=1.0.2h
-    #- NGINX_VERSION=1.13.6 OPENSSL_VER=1.1.0c OPENSSL_PATCH_VER=1.1.0c
+    - NGINX_VERSION=1.13.6 OPENSSL_VER=1.1.0g OPENSSL_PATCH_VER=1.1.0d
 
 services:
  - memcache