in js/newsletters/dump-emails-list.js [11:22]
action: function(ctx) {
var issue = ctx.issue;
var emails = filter.getUniqueEmails(issue.fields.Recipients, issue.reporter.email);
var text = 'Newsletter will be sent to ' + emails.length + ' recipient(s):\n\n' +
'```\n';
emails.forEach(function(email) {
text += email + '\n';
});
text += '```\n';
var newComment = issue.addComment(text);
newComment.permittedUsers.add(issue.reporter);
},