func golang.org/x/text/internal/language.grandfathered
2 uses
golang.org/x/text/internal/language (current package)
lookup.go#L403: func grandfathered(s [maxAltTaglen]byte) (t Tag, ok bool) {
parse.go#L253: if t, ok := grandfathered(b); ok {
The pages are generated with Golds v0.7.6. (GOOS=linux GOARCH=amd64)