Bug 1534131 remove period from checkbox description r=flod,mstriemer

Differential Revision: https://phabricator.services.mozilla.com/D22979

--HG--
extra : moz-landing-system : lando

browser/components/customizableui/content/panelUI.inc.xul

@@ -161,8 +161,8 @@
     <popupnotificationcontent class="addon-installed-notification-content" orient="vertical">
       <description>&addonPostInstallMessage.label;</description>
       <checkbox id="addon-incognito-checkbox"
-                label="&addonPostInstall.incognito.label;"
-                accesskey="&addonPostInstall.incognito.accesskey;"/>
+                label="&addonPostInstall.incognito.checkbox.label;"
+                accesskey="&addonPostInstall.incognito.checkbox.accesskey;"/>
     </popupnotificationcontent>
   </popupnotification>
 

browser/locales/en-US/chrome/browser/browser.dtd

@@ -1133,8 +1133,8 @@ you can use these alternative items. Otherwise, their values should be empty.  -
      The first <image> tag is replaced with the icon for the add-ons menu.
      The second <image> tag is replaced with the icon for the toolbar menu. -->
 <!ENTITY addonPostInstallMessage.label "Manage your add-ons by clicking <image class='addon-addon-icon'/> in the <image class='addon-toolbar-icon'/> menu.">
-<!ENTITY addonPostInstall.incognito.label "Allow this extension to run in Private Windows.">
-<!ENTITY addonPostInstall.incognito.accesskey "A">
+<!ENTITY addonPostInstall.incognito.checkbox.label "Allow this extension to run in Private Windows">
+<!ENTITY addonPostInstall.incognito.checkbox.accesskey "A">
 
 <!ENTITY addonPrivateBrowsing.header2.label "Change to extensions in Private Windows">
 <!ENTITY addonPrivateBrowsing.body2.label "Any new extensions you add to &brandShorterName; won’t work in Private Windows unless you allow this in the settings.">