I'm in the process of a disassembling of a live drupal based site. While writing a drush make file I discovered there was some patching of contrib modules and core. I can instruct drush make to patch contrib modules using a 'patch' option. But I can't make it patch core.
I tried both
projects[drupal][patch][] = ...
projects[core][patch][] = ...
without success, nothing changes.
Can someone give a hint?