src: fix winapi_strerror error string

src/api/exceptions.cc

@@ -157,14 +157,14 @@ Local<Value> UVException(Isolate* isolate,
 static const char* winapi_strerror(const int errorno, bool* must_free) {
   char* errmsg = nullptr;
 
-  FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM |
-                    FORMAT_MESSAGE_IGNORE_INSERTS,
-                nullptr,
-                errorno,
-                MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
-                reinterpret_cast<LPTSTR>(&errmsg),
-                0,
-                nullptr);
+  FormatMessageA(FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM |
+                     FORMAT_MESSAGE_IGNORE_INSERTS,
+                 nullptr,
+                 errorno,
+                 MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
+                 reinterpret_cast<LPSTR>(&errmsg),
+                 0,
+                 nullptr);
 
   if (errmsg) {
     *must_free = true;

test/parallel/test-debug-process.js

@@ -0,0 +1,21 @@
+'use strict';
+const common = require('../common');
+const assert = require('assert');
+const child = require('child_process');
+
+if (!common.isWindows) {
+  common.skip('This test is specific to Windows to test winapi_strerror');
+}
+
+// Ref: https://github.com/nodejs/node/issues/23191
+// This test is specific to Windows.
+
+const cp = child.spawn('pwd');
+
+cp.on('exit', common.mustCall(function() {
+  try {
+    process._debugProcess(cp.pid);
+  } catch (error) {
+    assert.strictEqual(error.message, 'The system cannot find the file specified.');
+  }
+}));