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

build/linux/sysroot_scripts/install-sysroot.py

 #!/usr/bin/env python
 # Copyright (c) 2013 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.
 
 """Install Debian Wheezy sysroots for building chromium.
 """
 
 # The sysroot is needed to ensure that binaries will run on Debian Wheezy,
 # the oldest supported linux distribution.  This script can be run manually but
@@ skipping 171 matching lines @@
     revision = REVISION_MIPS
   else:
     raise Error('Unknown architecture: %s' % target_arch)
 
   url = '%s/%s/%s/%s' % (URL_PREFIX, URL_PATH, revision, tarball_filename)
 
   stamp = os.path.join(sysroot, '.stamp')
   if os.path.exists(stamp):
     with open(stamp) as s:
       if s.read() == url:
-        print 'Debian Wheezy %s root image already up-to-date: %s' % \
+        print 'Debian Wheezy %s root image already up to date: %s' % \
             (target_arch, sysroot)
         return
 
   print 'Installing Debian Wheezy %s root image: %s' % (target_arch, sysroot)
   if os.path.isdir(sysroot):
     shutil.rmtree(sysroot)
   os.mkdir(sysroot)
   tarball = os.path.join(sysroot, tarball_filename)
   print 'Downloading %s' % url
   sys.stdout.flush()
@@ skipping 10 matching lines @@
   with open(stamp, 'w') as s:
     s.write(url)
 
 
 if __name__ == '__main__':
   try:
     sys.exit(main(sys.argv[1:]))
   except Error as e:
     sys.stderr.write(str(e) + '\n')
     sys.exit(1)