bump(github.com/docker/libcompose) v0.3.0

vendor/github.com/prometheus/common/expfmt/text_create.go

@@ -14,6 +14,7 @@
 package expfmt
 
 import (
+	"bytes"
 	"fmt"
 	"io"
 	"math"
@@ -284,17 +285,21 @@ func labelPairsToText(
 	return written, nil
 }
 
-var (
-	escape                = strings.NewReplacer("\\", `\\`, "\n", `\n`)
-	escapeWithDoubleQuote = strings.NewReplacer("\\", `\\`, "\n", `\n`, "\"", `\"`)
-)
-
 // escapeString replaces '\' by '\\', new line character by '\n', and - if
 // includeDoubleQuote is true - '"' by '\"'.
 func escapeString(v string, includeDoubleQuote bool) string {
-	if includeDoubleQuote {
-		return escapeWithDoubleQuote.Replace(v)
+	result := bytes.NewBuffer(make([]byte, 0, len(v)))
+	for _, c := range v {
+		switch {
+		case c == '\\':
+			result.WriteString(`\\`)
+		case includeDoubleQuote && c == '"':
+			result.WriteString(`\"`)
+		case c == '\n':
+			result.WriteString(`\n`)
+		default:
+			result.WriteRune(c)
+		}
 	}
-
-	return escape.Replace(v)
+	return result.String()
 }