Use correct path to simpletest

.travis.yml

@@ -44,7 +44,6 @@ install:
   - drush --uri=127.0.0.1:8282 fim -y islandora_core_feature,islandora_text_extraction_defaults
 
 before_script:
-  - mkdir $DRUPAL_DIR/web/sites/simpletest/browser_output
   - cp $PHPUNIT_FILE $DRUPAL_DIR/web/core
 
 script:

phpunit.xml

@@ -20,7 +20,7 @@
     <!-- Example SIMPLETEST_DB value: mysql://username:password@localhost/databasename#table_prefix -->
     <env name="SIMPLETEST_DB" value="mysql://drupal:drupal@127.0.0.1/drupal"/>
     <!-- Example BROWSERTEST_OUTPUT_DIRECTORY value: /path/to/webroot/sites/simpletest/browser_output -->
-    <env name="BROWSERTEST_OUTPUT_DIRECTORY" value="/var/www/drupal/web/sites/simpletest/browser_output"/>
+    <env name="BROWSERTEST_OUTPUT_DIRECTORY" value="/opt/drupal/web/sites/simpletest/browser_output"/>
     <!-- To have browsertest output use an alternative base URL. For example if
      SIMPLETEST_BASE_URL is an internal DDEV URL, you can set this to the
      external DDev URL so you can follow the links directly.