StartElement{Name{"", "foo"}, []Attr{
			{Name{"space1", "a"}, "space1 value"},
			{Name{"space2", "b"}, "space2 value"},
		}},
	},
	want: `<foo xmlns:_xmlns="xmlns" _xmlns:x="space1"><foo _xmlns:x="space2"><foo xmlns:space1="space1" space1:a="space1 value" xmlns:space2="space2" space2:b="space2 value"></foo></foo><foo xmlns:space1="space1" space1:a="space1 value" xmlns:space2="space2" space2:b="space2 value">`,
}, {

# there are some spaces at the end
apiVersion: v1
kind: ConfigMap
metadata:
  name: myconfigmap
  namespace: default
data:

the input. Unless the run of spaces in the format string
appears adjacent to a newline, the run must consume at least
one space from the input or find the end of the input.

The handling of spaces and newlines differs from that of C's
scanf family: in C, newlines are treated as any other space,
and it is never an error when a run of spaces in the format
string finds no spaces to consume in the input.

The patterns used by [ServeMux] now allow one or more spaces or tabs after the method name.

		fmtc, w := utf8.DecodeRuneInString(format[i:])

		// Space processing.
		// In the rest of this comment "space" means spaces other than newline.
		// Newline in the format matches input of zero or more spaces and then newline or end-of-input.
		// Spaces in the format before the newline are collapsed into the newline.
		// Spaces in the format after the newline match zero or more spaces after the corresponding input newline.

	// credElement is fetched first to skip replacing the space in access key.
	credElement := strings.TrimPrefix(strings.Split(strings.TrimSpace(v4Auth), ",")[0], signV4Algorithm)
	// Replace all spaced strings, some clients can send spaced
	// parameters and some won't. So we pro-actively remove any spaces
	// to make parsing easier.
	v4Auth = strings.ReplaceAll(v4Auth, " ", "")
	if v4Auth == "" {

	// and collapse consecutive internal spaces, tabs, and line endings to a single space.”
	s = trimSpaceTabNewline(s)
	var b strings.Builder
	space := false
	hi := false
	for i := 0; i < len(s); i++ {
		c := s[i]
		switch c {
		case ' ', '\t', '\n':
			space = true
			continue
		default:
			if space {
				b.WriteByte(' ')
				space = false

// characters include letters, marks, numbers, punctuation, symbols, and the
// ASCII space character, from categories [L], [M], [N], [P], [S] and the ASCII space
// character. This categorization is the same as [IsGraphic] except that the
// only spacing character is ASCII space, U+0020.
func IsPrint(r rune) bool {
	if uint32(r) <= MaxLatin1 {
		return properties[uint8(r)]&pp != 0
	}

	"author",
}

// Synopsis returns a cleaned version of the first sentence in text.
// That sentence ends after the first period followed by space and not
// preceded by exactly one uppercase letter, or at the first paragraph break.
// The result string has no \n, \r, or \t characters and uses only single
// spaces between words. If text starts with any of the [IllegalPrefixes],
// the result is the empty string.

				break
			}
			// var iline string
			// is := initialSpaces(line)
			// if is < 4 {
			// 	iline = "    " + line
			// } else {
			// 	iline = "\t" + line[4:]
			// }
			// Indent by 4 spaces.
			pre := s.prefix
			if i == 0 {
				pre = prefix1
			}
			fmt.Fprintf(buf, "%s%s%s\n", pre, "    ", line)
		}
	} else {
		fmt.Fprintf(buf, "%s%s\n", prefix1, b.Fence)
		for _, line := range b.Text {