Hostnames that start with a _ are seemed as invalid

[igorhrcek]

ssh-aliases/compiler/expander.go

Line 21 in 5403407

hostnameRegexp: regexp.MustCompile(`^([a-zA-Z0-9]|[a-zA-Z0-9][a-zA-Z0-9-]{0,61}[a-zA-Z0-9])(\.([a-zA-Z0-9]|[a-zA-Z0-9][a-zA-Z0-9-]{0,61}[a-zA-Z0-9]))*$`),

I have a hostname called _something.domain.com, it is sort of special subdomain name that starts with a _, but I cannot compile the config because of this regexp.

[dankraw]

hi @igorhrcek, thanks for the issue.
You are right, the underscore should be allowed here. I should fix this soon.

[dankraw]

@igorhrcek hi, I've just fixed it and released as v0.3.2, I hope it works for you. :]