[Rpm-maint] [rpm-software-management/rpm] Any way to work around %gsub's (Lua-originating) escaping requirements regarding the input string? (Discussion #3826)

[Frank Dana]

Although, here's a related question: Since Lua _does_ use `%` as its pattern escape character, what's the most-correct way to quote that so it doesn't bump up against the specfile macro parser?

All of these seem to _work_, but I can imagine some of them aren't so much "correct" as "happen to not break, but still a bad idea":

```spec
%{gsub %{version} %. _}
%{gsub %{version} %%. _}
%{gsub %{version} %{quote:%.} _}
%{gsub %{version} %{quote:%%.} _}
```


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