"Function used to generate a `User-Agent:' string. If this is
`nil' then no `User-Agent:' will be generated."
:group 'notmuch
- :type 'function
- :options '(notmuch-mua-user-agent-full
- notmuch-mua-user-agent-notmuch
- notmuch-mua-user-agent-emacs))
+ :type '(choice (const :tag "No user agent string" nil)
+ (const :tag "Full" notmuch-mua-user-agent-full)
+ (const :tag "Notmuch" notmuch-mua-user-agent-notmuch)
+ (const :tag "Emacs" notmuch-mua-user-agent-emacs)
+ (function :tag "Custom user agent function"
+ :value notmuch-mua-user-agent-full)))
(defcustom notmuch-mua-hidden-headers '("^User-Agent:")
"Headers that are added to the `message-mode' hidden headers