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

chrome/app/google_chrome_strings.grd

 <?xml version="1.0" encoding="UTF-8"?>
 <!-- This file contains definitions of strings that are specific to
 Google Chrome. These strings will be translated for each locale that Google
 Chrome supports. If you update this file, be sure also to update
 chromium_strings.grd. -->
 
 <grit base_dir="." latest_public_release="0" current_release="1"
       source_lang_id="en" enc_check="möl">
   <outputs>
     <output filename="grit/google_chrome_strings.h" type="rc_header">
@@ skipping 556 matching lines @@
       </message>
 
       <!-- Google API keys info bar -->
       <message name="IDS_MISSING_GOOGLE_API_KEYS" desc="Message shown when Google API keys are missing. This message is followed by a 'Learn more' link.">
         Google API keys are missing. Some functionality of Google Chrome will be disabled.
       </message>
 
       <!-- About Chrome page -->
       <if expr="not chromeos">
         <message name="IDS_UPGRADE_SUCCESSFUL_RELAUNCH" desc="Status label: Successfully updated Google Chrome">
-          Nearly up-to-date! Relaunch Google Chrome to finish updating.
+          Nearly up to date! Relaunch Google Chrome to finish updating.
         </message>
       </if>
       <if expr="chromeos">
         <message name="IDS_UPGRADE_SUCCESSFUL_RELAUNCH" desc="Status label: Successfully updated Chrome OS">
-          Nearly up-to-date! Restart your device to finish updating.
+          Nearly up to date! Restart your device to finish updating.
         </message>
       </if>
       <if expr="chromeos">
         <message name="IDS_UPGRADE_SUCCESSFUL_CHANNEL_SWITCH" desc="Status label: Channel was successfully switched on Chrome OS">
           Channel changed. Restart your device to apply changes.
         </message>
       </if>
       <if expr="not chromeos">
         <message name="IDS_UPGRADE_UP_TO_DATE" desc="Status label: Already up to date (Google Chrome)">
           Google Chrome is up to date.
@@ skipping 617 matching lines @@
         </message>
         <message name="IDS_METRO_FLOW_LOGO_STRING_ALT"
                  desc="Alt text for the faded Chrome logo image.">
           Chrome logo
         </message>
       </if>
 
     </messages>
   </release>
 </grit>