func net/textproto.canonicalMIMEHeaderKey

4 uses

	net/textproto (current package)
		reader.go#L552: 		key, ok := canonicalMIMEHeaderKey(k)
		reader.go#L656: 			s, _ = canonicalMIMEHeaderKey([]byte(s))
		reader.go#L660: 			s, _ = canonicalMIMEHeaderKey([]byte(s))
		reader.go#L742: func canonicalMIMEHeaderKey(a []byte) (_ string, ok bool) {