added php7.4 to travis-ci

.travis.yml

@@ -164,6 +164,24 @@ matrix:
       - cd tests && ./test.sh
     before_install:
       - sudo mysql -e "use mysql; update user set authentication_string=PASSWORD('') where User='root'; update user set plugin='mysql_native_password';FLUSH PRIVILEGES;"
+  - php: 7.4
+    dist: xenial
+    sudo: required
+    services:
+      - mysql
+    before_script:
+      - curl -s http://getcomposer.org/installer | php
+      - php composer.phar install
+      - mysql -V
+      - mysqldump -V
+      - tests/create_users.sh
+    script:
+      - php -l src/Ifsnop/Mysqldump/Mysqldump.php
+      - php src/Ifsnop/Mysqldump/Mysqldump.php
+      - vendor/bin/phpunit
+      - cd tests && ./test.sh
+    before_install:
+      - sudo mysql -e "use mysql; update user set authentication_string=PASSWORD('') where User='root'; update user set plugin='mysql_native_password';FLUSH PRIVILEGES;"
   - php: nightly
     dist: xenial
     sudo: required