Updating usage notes for remoting_breakpad_tester

remoting/tools/breakpad_tester_win.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include <windows.h>
 #include <stdlib.h>
 
 #include "base/at_exit.h"
 #include "base/command_line.h"
 #include "base/win/scoped_handle.h"
 #include "remoting/host/logging.h"
 
 namespace {
 
 // "--help" or "--?" prints the usage message.
 const char kHelpSwitchName[] = "help";
 const char kQuestionSwitchName[] = "?";
 
 const char kUsageMessage[] =
-  "\n"
-  "Usage: %s <pid>\n"
-  "\n"
-  "  pid  - PID of the process to be crashed.\n";
+    "\n"
+    "Usage: %s <pid>\n"
+    "\n"
+    "  pid  - PID of the process to be crashed.\n"
+    "\n\n"
+    "Note: You may need to run this tool as SYSTEM\n"
+    "      to prevent access denied errors.\n";
 
 // Exit codes:
 const int kSuccessExitCode = 0;
 const int kUsageExitCode = 1;
 const int kErrorExitCode = 2;
 
 void usage(const char* program_name) {
   fprintf(stderr, kUsageMessage, program_name);
 }
 
@@ skipping 39 matching lines @@
   base::win::ScopedHandle thread;
   thread.Set(CreateRemoteThread(process.Get(), NULL, 0, NULL, NULL, 0,
                                 &thread_id));
   if (!thread.IsValid()) {
     PLOG(ERROR) << "Failed to create a remote thread in " << pid;
     return kErrorExitCode;
   }
 
   return kSuccessExitCode;
 }