func strings.TrimRightFunc

4 uses

	strings (current package)
		strings.go#L893: func TrimRightFunc(s string, f func(rune) bool) string {
		strings.go#L907: 	return TrimRightFunc(TrimLeftFunc(s, f), f)
		strings.go#L1110: 			return TrimRightFunc(s[start:stop], unicode.IsSpace)

	go/printer
		printer.go#L494: 	return strings.TrimRightFunc(s, unicode.IsSpace)