Firewall rules names on Windows do not need periods.

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. -->
 
 <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">
       <emit emit_type='prepend'></emit>
@@ skipping 1064 matching lines @@
       <message name="IDS_EXTENSIONS_SETTINGS_API_SECOND_LINE_START_AND_HOME" desc="Second line in the Settings API bubble. Only shown if the secondary change by the extension was both the start page and the home page. See IDS_EXTENSIONS_SETTINGS_API_SECOND_LINE_START_PAGES for reason for triple quotes.">
         ''' It also controls what page is shown when you start Chrome or click the Home button. '''
       </message>
       <message name="IDS_EXTENSIONS_SETTINGS_API_SECOND_LINE_START_AND_SEARCH" desc="Second line in the Settings API bubble. Only shown if the secondary change by the extension was both the start page and the search engine. See IDS_EXTENSIONS_SETTINGS_API_SECOND_LINE_START_PAGES for reason for triple quotes.">
         ''' It also controls what page is shown when you start Chrome or search from the Omnibox. '''
       </message>
 
       <!-- Windows firewall rule strings. -->
       <if expr="is_win">
         <message name="IDS_INBOUND_MDNS_RULE_NAME" desc="The name of the firewall rule allowing inbound mDNS traffic.">
-          Google Chrome (mDNS-In).
+          Google Chrome (mDNS-In)
         </message>
         <message name="IDS_INBOUND_MDNS_RULE_NAME_CANARY" desc="The name of the firewall rule allowing inbound mDNS traffic for canary.">
-          Google Chrome Canary (mDNS-In).
+          Google Chrome Canary (mDNS-In)
         </message>
         <message name="IDS_INBOUND_MDNS_RULE_DESCRIPTION" desc="The description of the firewall rule allowing inbound mDNS traffic.">
           Inbound rule for Google Chrome to allow mDNS traffic.
         </message>
         <message name="IDS_INBOUND_MDNS_RULE_DESCRIPTION_CANARY" desc="The description of the firewall rule allowing inbound mDNS traffic canary.">
           Inbound rule for Google Chrome Canary to allow mDNS traffic.
         </message>
       </if>
 
       <!-- Update bubble -->
@@ skipping 25 matching lines @@
         <message name="IDS_NEW_TAB_OTR_EXTENSIONS_MESSAGE"
                  desc="Explanation in a new OTR window that extensions have been disabled while in OTR.">
           Because Google Chrome does not control how extensions handle your personal data, all extensions have been disabled for incognito windows. You can reenable them individually in the
           <ph name="BEGIN_LINK">&lt;a href="$1"&gt;</ph>extensions manager<ph name="END_LINK">&lt;/a&gt;<ex>&lt;/a&gt;</ex></ph>.
         </message>
       </if>
 
     </messages>
   </release>
 </grit>