Minor string change for extension warning

Suggested by jonann@.

Bug: none
Change-Id: I6ce09c78087964ccb9b768dfaf750c03cadc3185
Reviewed-on: https://chromium-review.googlesource.com/c/1475489Reviewed-by: Devlin <rdevlin.cronin@chromium.org>
Commit-Queue: Thiemo Nagel <tnagel@chromium.org>
Cr-Commit-Position: refs/heads/master@{#633823}

chrome/app/generated_resources.grd

@@ -3703,7 +3703,7 @@ are declared in tools/grit/grit_rule.gni.
         </message>
 
         <message name="IDS_EXTENSION_PROMPT_WARNING_CONTENT_SETTINGS" desc="Permission string for access to content settings.">
-          Change your settings that control websites' access to features such as cookies, JavaScript, plugins, geolocation, microphone, camera etc.
+          Change your settings that control websites' access to features such as cookies, JavaScript, plugins, geolocation, microphone, camera, etc.
         </message>
         <message name="IDS_EXTENSION_PROMPT_WARNING_PRIVACY" desc="Permission string for access to privacy settings.">
           Change your privacy-related settings