func unicode.ToLower

4 uses

	unicode (current package)
		letter.go#L279: func ToLower(r rune) rune {
		letter.go#L322: 		r1 = ToLower(r)

	bytes
		bytes.go#L745: 	return Map(unicode.ToLower, s)

	strings
		strings.go#L763: 	return Map(unicode.ToLower, s)