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

docs/windows_build_instructions.md

 # Windows Build Instructions
 
 ## Common checkout instructions
 
 This page covers Windows-specific setup and configuration. The
 [general checkout
 instructions](http://dev.chromium.org/developers/how-tos/get-the-code) cover
 installing depot tools and checking out the code via git.
 
 ## Setting up Windows
@@ skipping 56 matching lines @@
 page):
 
 ```gn gen --ide=vs out\Default
 devenv out\Default\all.sln
 ```
 
 GN will produce a file `all.sln` in your build directory. It will internally
 use Ninja to compile while still allowing most IDE functions to work (there is
 no native Visual Studio compilation mode). If you manually run "gen" again you
 will need to resupply this argument, but normally GN will keep the build and
-IDE files up-to-date automatically when you build.
+IDE files up to date automatically when you build.
 
 The generated solution will contain several thousand projects and will be very
 slow to load. Use the `--filters` argument to restrict generating project files
 for only the code you're interested in, although this will also limit what
 files appear in the project explorer. A minimal solution that will let you
 compile and run Chrome in the IDE but will not show any source files is:
 
 ```gn gen --ide=vs --filters=//chrome out\Default```
 
 There are other options for controlling how the solution is generated, run `gn
 help gen` for the current documentation.
 
 ## Performance tips
 
 1.  Have a lot of fast CPU cores and enough RAM to keep them all busy.
     (Minimum recommended is 4-8 fast cores and 16-32 GB of RAM)
 2.  Reduce file system overhead by excluding build directories from
     antivirus and indexing software.
 3.  Store the build tree on a fast disk (preferably SSD).
 4.  If you are primarily going to be doing debug development builds, you
     should use the component build. Set the [build
     arg](https://www.chromium.org/developers/gn-build-configuration)
     `is_component_build = true`.
     This will generate many DLLs and enable incremental linking, which makes
     linking **much** faster in Debug.
 
 Still, expect build times of 30 minutes to 2 hours when everything has to
 be recompiled.