Upgrade zip to 1.22.4 upstream

internal/godebug/godebug.go

@@ -0,0 +1,44 @@
+// Copyright 2021 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Package godebug makes the simplified settings in the $GODEBUG environment variable
+// available to packages.
+// Needed since internal/godebug is not available here.
+package godebug
+
+import "os"
+
+func Get(key string) string {
+	s := os.Getenv("GODEBUG")
+	if s == "" {
+		return ""
+	}
+	// Scan the string backward so that later settings are used
+	// and earlier settings are ignored.
+	// Note that a forward scan would cause cached values
+	// to temporarily use the ignored value before being
+	// updated to the "correct" one.
+	end := len(s)
+	eq := -1
+	for i := end - 1; i >= -1; i-- {
+		if i == -1 || s[i] == ',' {
+			if eq >= 0 {
+				name, arg := s[i+1:eq], s[eq+1:end]
+				if name == key {
+					for j := 0; j < len(arg); j++ {
+						if arg[j] == '#' {
+							return arg[:j]
+						}
+					}
+					return arg
+				}
+			}
+			eq = -1
+			end = i
+		} else if s[i] == '=' {
+			eq = i
+		}
+	}
+	return ""
+}