mozilla/basket — pull request #36 by pmclanahan (2013-05-01 14:42:35+00:00)
Title: Fix exceptions when no welcome requested and text format.

Sentry showed us exceptions in the update_user task were being caused when no
welcome was requested and the email format was set for text. This is because
welcome would be None, yet we still tried to append
'_T' to it. DOH!