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diff --git a/node_modules/npm-run-all/lib/spawn-posix.js b/node_modules/npm-run-all/lib/spawn-posix.js
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+++ b/node_modules/npm-run-all/lib/spawn-posix.js
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+/**
+ * @module spawn-posix
+ * @author Toru Nagashima
+ * @copyright 2015 Toru Nagashima. All rights reserved.
+ * See LICENSE file in root directory for full license.
+ */
+"use strict"
+
+//------------------------------------------------------------------------------
+// Requirements
+//------------------------------------------------------------------------------
+
+const crossSpawn = require("cross-spawn")
+const getDescendentProcessInfo = require("pidtree")
+
+//------------------------------------------------------------------------------
+// Helpers
+//------------------------------------------------------------------------------
+
+/**
+ * Kills the new process and its sub processes.
+ * @this ChildProcess
+ * @returns {void}
+ */
+function kill() {
+    getDescendentProcessInfo(this.pid, { root: true }, (err, pids) => {
+        if (err) {
+            return
+        }
+
+        for (const pid of pids) {
+            try {
+                process.kill(pid)
+            }
+            catch (_err) {
+                // ignore.
+            }
+        }
+    })
+}
+
+//------------------------------------------------------------------------------
+// Public Interface
+//------------------------------------------------------------------------------
+
+/**
+ * Launches a new process with the given command.
+ * This is almost same as `child_process.spawn`.
+ *
+ * This returns a `ChildProcess` instance.
+ * `kill` method of the instance kills the new process and its sub processes.
+ *
+ * @param {string} command - The command to run.
+ * @param {string[]} args - List of string arguments.
+ * @param {object} options - Options.
+ * @returns {ChildProcess} A ChildProcess instance of new process.
+ * @private
+ */
+module.exports = function spawn(command, args, options) {
+    const child = crossSpawn(command, args, options)
+    child.kill = kill
+
+    return child
+}