Merge "Improve soong stuck ninja detection output" into main

		// The Ninja file hasn't been modified since the last time it was

		// checked, so Ninja could be stuck. Output some diagnostics.

		ctx.Verbosef("ninja may be stuck; last update to %v was %v. dumping process tree...", c.logPath, newModTime)

		ctx.Printf("ninja may be stuck, check %v for list of running processes.",

			filepath.Join(config.LogsDir(), config.logsPrefix+"soong.log"))

		// The "pstree" command doesn't exist on Mac, but "pstree" on Linux

		// gives more convenient output than "ps" So, we try pstree first, and

		// ps second

		commandText := fmt.Sprintf("pstree -pal %v || ps -ef", os.Getpid())

		commandText := fmt.Sprintf("pstree -palT %v || ps -ef", os.Getpid())

		cmd := Command(ctx, config, "dump process tree", "bash", "-c", commandText)

		output := cmd.CombinedOutputOrFatal()