Last modified: 2014-01-02 07:07:47 UTC
The massmessage-sender user group is called "Massmessage sender". It should be called "Mass message sender". See https://git.wikimedia.org/blob/mediawiki%2Fextensions%2FWikimediaMessages/d63acfad3aa0a8e2bdfa2512a3efab4924c69667/WikimediaMessages.i18n.php#L206
Cross-reference: https://en.wikipedia.org/wiki/MediaWiki_talk:Group-massmessage-sender
Change 104908 had a related patch set uploaded by TTO: Change "Massmessage" to "Mass message" https://gerrit.wikimedia.org/r/104908
Change 104908 merged by jenkins-bot: Change "Massmessage" to "Mass message" https://gerrit.wikimedia.org/r/104908