Something like this might be helpful to automate verification that a release contains no binary files:
find . -type f -exec file {} \; | grep -v text | grep -v empty
BTW, I really like that you've started documenting the steps for verifying a
release. On a lot of projects, release verification is something that lacks
formal documentation and falls to some combination of the generic Apache
documentation + tribal knowledge.
--Chris Nauroth
