rng-in-end-tag-name-regex
rng-in-end-tag-name-regex is a variable defined in `rng-nxml.el
'.
Its value is "\\(?:\\(?:[_[:alpha:]][-._[:alnum:]]*\\)\\(?::\\(?:[_[:alpha:]][-._[:alnum:]]*\\)?\\)?\\)?\\="
- This variable may be risky if used as a file-local variable.