fix travis php 7.1 issue

.travis.yml

@@ -25,6 +25,8 @@ before_install:
   # enable php-fpm
   - sudo cp ~/.phpenv/versions/$(phpenv version-name)/etc/php-fpm.conf.default ~/.phpenv/versions/$(phpenv version-name)/etc/php-fpm.conf
   - if [[ ${TRAVIS_PHP_VERSION:0:3} == "7.0" ]]; then sudo cp ~/.phpenv/versions/$(phpenv version-name)/etc/php-fpm.d/www.conf.default ~/.phpenv/versions/$(phpenv version-name)/etc/php-fpm.d/www.conf ; fi
+  - if [[ ${TRAVIS_PHP_VERSION:0:3} == "7.1" ]]; then sudo cp ~/.phpenv/versions/$(phpenv version-name)/etc/php-fpm.d/www.conf.default ~/.phpenv/versions/$(phpenv version-name)/etc/php-fpm.d/www.conf ; fi
+
   - sudo a2enmod rewrite actions fastcgi alias
   - echo "cgi.fix_pathinfo = 1" >> ~/.phpenv/versions/$(phpenv version-name)/etc/php.ini
   - echo "memory_limit = 2G" >> ~/.phpenv/versions/$(phpenv version-name)/etc/php.ini