Adding upstream version 3.10.8.

Signed-off-by: Daniel Baumann <daniel@debian.org>

cmd/signal.go

@@ -0,0 +1,33 @@
+// Copyright Earl Warren <contact@earl-warren.org>
+// Copyright Loïc Dachary <loic@dachary.org>
+// SPDX-License-Identifier: MIT
+
+package cmd
+
+import (
+	"context"
+	"os"
+	"os/signal"
+	"syscall"
+)
+
+func InstallSignals() (context.Context, context.CancelFunc) {
+	ctx, cancel := context.WithCancel(context.Background())
+	go func() {
+		signalChannel := make(chan os.Signal, 1)
+
+		signal.Notify(
+			signalChannel,
+			syscall.SIGINT,
+			syscall.SIGTERM,
+		)
+		select {
+		case <-signalChannel:
+		case <-ctx.Done():
+		}
+		cancel()
+		signal.Reset()
+	}()
+
+	return ctx, cancel
+}