Super tiny, not really a bug. There's a small (possible) error in env_example

[ultrablue]

Hi:

Line 89 of env-example says:

### Note: Only ALPHA ([a-zA-Z]+) characters are supported.

But that's not strictly true. Dots are allowed, as well. For example:

TLD_SUFFIX=loc.my.edu

Also works.

I realize that that's probably because dots are allowed in hostnames in general, but it might be a good idea to say something like:

### Note: In addition to period or dot character ('.'), only ALPHA ([a-zA-Z]+) characters are supported.

Please let me know if I can be of assistance.

Thank you!

[stale]

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