rfc: Add 'variables' attribute to language tag
This allows specifying for e.g., indent-width for a language. For most languages this is not needed but some languages follow a preset style for e.g., dart or golang have specific indent-widths.
This allows specifying for e.g., indent-width for a language. For most languages this is not needed but some languages follow a preset style for e.g., dart or golang have specific indent-widths.