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

.gn

 # This file is used by the GN meta build system to find the root of the source
 # tree and to set startup options. For documentation on the values set in this
 # file, run "gn help dotfile" at the command line.
 
 # The location of the build configuration file.
 buildconfig = "//build/config/BUILDCONFIG.gn"
 
 # The secondary source root is a parallel directory tree where
 # GN build files are placed when they can not be placed directly
 # in the source tree, e.g. for third party source trees.
@@ skipping 197 matching lines @@
 #      surprising effects.
 #
 #    - It becomes impossible to use "git grep" to find where a certain file is
 #      referenced. This operation is very common and people really do get
 #      confused when things aren't listed.
 #
 #    - It's easy to screw up. One common case is a build-time script that packs
 #      up a directory. The author notices that the script isn't re-run when the
 #      directory is updated, so adds a glob so all the files are listed as
 #      inputs. This seems to work great... until a file is deleted. When a
-#      file is deleted, all the inputs the glob lists will still be up-to-date
+#      file is deleted, all the inputs the glob lists will still be up to date
 #      and no command-lines will have been changed. The action will not be
 #      re-run and the build will be broken. It is possible to get this correct
 #      using glob, and it's possible to mess it up without glob, but globs make
 #      this situation much easier to create. if the build always lists the
 #      files and passes them to a script, it will always be correct.
 exec_script_whitelist = [
   "//android_webview/BUILD.gn",
   "//ash/BUILD.gn",
   "//build/config/BUILD.gn",
   "//build/config/android/config.gni",
@@ skipping 96 matching lines @@
   "//tools/gn/function_exec_script.cc",
   "//tools/gn/gn.gyp",
   "//tools/gn/input_conversion.cc",
   "//tools/gn/misc/emacs/gn.el",
   "//tools/gn/misc/vim/syntax/gn.vim",
   "//tools/gn/setup.cc",
   "//ui/accessibility/BUILD.gn",
   "//ui/views/BUILD.gn",
   "//ui/views/mus/BUILD.gn",
 ]