sort-cli: magic constants

sort-cli/content.go

@@ -9,6 +9,9 @@ import (
 	"strings"
 )
 
+// NL New line constant
+const NL = "\n"
+
 type content [][]byte
 
 func (c *content) Sort(reverse bool) {
@@ -42,14 +45,14 @@ func (c *content) String() string {
 	for _, line := range lines {
 		n += len(line)
 	}
-	n += len(lines) * len("\n")
+	n += len(lines) * len(NL)
 
 	var sb strings.Builder
 	sb.Grow(n)
 
 	for i, line := range lines {
 		if i > 0 {
-			sb.WriteString("\n")
+			sb.WriteString(NL)
 		}
 
 		for _, rn := range line {