python binary copies being shipped due to venv sed code pattern

[dannf]

I ran across 2 packages last week that were using a similar code pattern that resulted in apks shipping and using copies of the installed python interpreter. Here's an example:

cce8c0e

This obviously impacts the size of packages and images, but it may also result in security vulnerabilities in those binary copies not being patched.

[dannf]

I also recommend that, while updating these, we make sure that the sed is restricted to operating on the first line of these files. I fear weird problems may occur later in the file.

[dannf]

@smoser suggested implementing a pipeline to alter sh(e)bangs in a uniform way.