No more need to output log

.travis.yml

@@ -128,7 +128,7 @@ script:
  - php upgrade.php 3.6.0 3.7.0 ignoredbversion > upgrade360370.log
  - php upgrade2.php 3.6.0 3.7.0 ignoredbversion > upgrade360370-2.log
  - php upgrade.php 3.7.0 3.8.0 ignoredbversion > upgrade370380.log
- - cat upgrade370380.log
+# - cat upgrade370380.log
  - php upgrade2.php 3.7.0 3.8.0 ignoredbversion > upgrade370380-2.log
 # - cat upgrade370380-2.log
  - cd ../..