webfactory/composer — comment on commit c6e4984a6243ab5f327205f48c2a66c6a6520026
File: src/Composer/Downloader/HgDownloader.php line 8
By stof:

no. The authorship of a particular class is handled through the `@author`` tag, which is done here. Changing the license header in each file would simply become a mess, especially if you consider you need to do it each time someone fixes a typo.