"up-to-date" should only use hyphens when used as compound modifier of a noun

base/sys_info_android.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 "base/sys_info.h"
 
 #include <dlfcn.h>
 #include <stddef.h>
 #include <stdint.h>
 #include <sys/system_properties.h>
@@ skipping 43 matching lines @@
   return g_lazy_real_system_property_get.Get().value()(name, value);
 }
 
 #endif
 
 namespace {
 
 // Default version of Android to fall back to when actual version numbers
 // cannot be acquired. Use the latest Android release with a higher bug fix
 // version to avoid unnecessarily comparison errors with the latest release.
-// This should be manually kept up-to-date on each Android release.
+// This should be manually kept up to date on each Android release.
 const int kDefaultAndroidMajorVersion = 6;
 const int kDefaultAndroidMinorVersion = 0;
 const int kDefaultAndroidBugfixVersion = 99;
 
 // Parse out the OS version numbers from the system properties.
 void ParseOSVersionNumbers(const char* os_version_str,
                            int32_t* major_version,
                            int32_t* minor_version,
                            int32_t* bugfix_version) {
   if (os_version_str[0]) {
@@ skipping 150 matching lines @@
   // implementations which could give different results.
   // Also the Java code cannot depend on the native code
   // since it might not be loaded yet.
   if (!base::android::IsVMInitialized())
     return false;
   return g_lazy_low_end_device.Get().value();
 }
 
 
 }  // namespace base