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Environment

Using the Ruby format, strings with interpolation are treated as comments.

macOS/Homebrew/3.4.1

Describe the bug / provide steps to reproduce it

Running vale with the style rule

---
extends: existence
message: "'%s' should have one space."
link: "https://github.com/Homebrew/brew/blob/HEAD/docs/Prose-Style-Guidelines.md#typographical-conventions"
level: error
nonword: true
tokens:
  - "[a-z][.?!][A-Z]"
  - "[.?!] {2,}[A-Z]"

on a Ruby file containing

"#{args.HEAD?}"

results in

 1:7  error  's.H' should have one space.  Homebrew.Spacing