update .travis.yml

Author: mtak3

.travis.yml

@@ -6,15 +6,13 @@ env:
     - RUN_TESTS=1
 
 php:
-  - 5.6
-  - 7.0
-  - hhvm
+  - 7.3
 
 sudo: false
 
 matrix:
   include:
-    - php: 5.6
+    - php: 7.2
       env: PHPCS=1 RUN_TESTS=0
 
 before_script:
@@ -23,7 +21,7 @@ before_script:
 
 script:
   - sh -c "if [ '$RUN_TESTS' = '1' ]; then vendor/bin/phpunit --coverage-text --coverage-clover=coverage.clover; fi"
-  - sh -c "if [ '$PHPCS' = '1' ]; then vendor/bin/phpcs -p -n --extensions=php --standard=psr2 ./src ./tests; fi"
+  - sh -c "if [ '$PHPCS' = '1' ]; then vendor/bin/phpcs -p ./src ./tests; fi"
 
 after_script:
   - if [[ $TRAVIS_PHP_VERSION != 'hhvm' && $TRAVIS_PHP_VERSION != '7.0' ]]; then php vendor/bin/ocular code-coverage:upload --format=php-clover coverage.clover; fi