Merge pull request #76 from andrewnicols/travisfix

Change lint check to report fails correctly

.travis.yml

@@ -37,4 +37,4 @@ jobs:
 
 script:
   # Run a php lint across all PHP files.
-  - find . -name '*\.php' -exec php -l {} \;
+  - find . -type f -name '*\.php' -print0 | xargs -0 -n1 php -l

h5p.classes.php

@@ -2458,7 +2458,7 @@ class H5PCore {
    * @param array $dependency
    * @return string
    */
-  protected function getDependencyPath(array $dependency): string {
+  protected function getDependencyPath(array $dependency) {
     return 'libraries/' . H5PCore::libraryToString($dependency, TRUE);
   }