vendor: update github.com/peterh/liner

vendor/github.com/peterh/liner/width.go

@@ -25,6 +25,12 @@ var doubleWidth = []*unicode.RangeTable{
 func countGlyphs(s []rune) int {
 	n := 0
 	for _, r := range s {
+		// speed up the common case
+		if r < 127 {
+			n++
+			continue
+		}
+
 		switch {
 		case unicode.IsOneOf(zeroWidth, r):
 		case unicode.IsOneOf(doubleWidth, r):
@@ -39,6 +45,10 @@ func countGlyphs(s []rune) int {
 func countMultiLineGlyphs(s []rune, columns int, start int) int {
 	n := start
 	for _, r := range s {
+		if r < 127 {
+			n++
+			continue
+		}
 		switch {
 		case unicode.IsOneOf(zeroWidth, r):
 		case unicode.IsOneOf(doubleWidth, r):
@@ -58,6 +68,11 @@ func countMultiLineGlyphs(s []rune, columns int, start int) int {
 func getPrefixGlyphs(s []rune, num int) []rune {
 	p := 0
 	for n := 0; n < num && p < len(s); p++ {
+		// speed up the common case
+		if s[p] < 127 {
+			n++
+			continue
+		}
 		if !unicode.IsOneOf(zeroWidth, s[p]) {
 			n++
 		}
@@ -71,6 +86,11 @@ func getPrefixGlyphs(s []rune, num int) []rune {
 func getSuffixGlyphs(s []rune, num int) []rune {
 	p := len(s)
 	for n := 0; n < num && p > 0; p-- {
+		// speed up the common case
+		if s[p-1] < 127 {
+			n++
+			continue
+		}
 		if !unicode.IsOneOf(zeroWidth, s[p-1]) {
 			n++
 		}