As of yesterday (March 19, 2013), I am getting the following error when trying to install this module via drush make:
File comment_notify-7.x-1.2.tar.gz is corrupt (wrong md5 checksum).
I did a bit of research, and it looks like this may be something that doesn't belong in this issue queue (a drupal.org thing?), but I wanted to go ahead and post since you did have a release yesterday just on the off-chance it is related on your end. Any ideas?