Merge pull request #4012 from hhamon/fix-licence-references

[Pear] replaces "licence" to "license".

src/Composer/Repository/Pear/PackageInfo.php

@@ -77,7 +77,7 @@ class PackageInfo
     }
 
     /**
-     * @return string the package licence
+     * @return string the package license
      */
     public function getLicense()
     {