correct documentation on opt-out-ness of usage ping

Former-commit-id: c7289d3e

correct documentation on opt-out-ness of usage ping
56ced13d · Job van der Voort · 70bd7369 · 56ced13d
Commit 56ced13d authored 7 years ago by Job van der Voort
--- a/doc/user/admin_area/settings/usage_statistics.md
+++ b/doc/user/admin_area/settings/usage_statistics.md
@@ -3,7 +3,7 @@
 GitLab Inc. will periodically collect information about your instance in order
 to perform various actions.
  
-All statistics are opt-in and you can always disable them from the admin panel.
+All statistics are opt-out, you can disable them from the admin panel.
  
 ## Version check