[llvm] [llvm-lit] Print environment variables when using env without subcommand (PR #98414)

[via llvm-commits]

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+#!/usr/bin/env python
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Harini0924 wrote:

I agree that the `print_environment.py` file is no longer needed. I've integrated its functionality directly into the `env` command's logic. Now, when the `env` command is run without any arguments, it generates and returns a list of all environment variables in the `KEY=VALUE` format. This was the original purpose of `print_environment.py`, but since the `env` command itself now handles this, the script has become redundant and can be safely removed. What do you think?

https://github.com/llvm/llvm-project/pull/98414