Please follow the general troubleshooting steps first:

Ran brew update and retried your prior step?
Ran brew doctor, fixed as many issues as possible and retried your prior step?
If you're seeing permission errors tried running sudo chown -R $(whoami) $(brew --prefix)?

You can erase any parts of this template not applicable to your Issue.

Bug reports:

Please replace this line with a brief summary of your issue.

Feature Requests:

Please note by far the quickest way to get a new feature into Homebrew is to file a Pull Request.

We will consider your request but it may be closed if it's something we're not actively planning to work on.