emacs: drop setting mail-user-agent, and document how to set it

[notmuch] / emacs / notmuch.el

diff --git a/emacs/notmuch.el b/emacs/notmuch.el
index d2e87b1b1256f5aaa456b726df8667e13cead700..3e2713e231290b2d80c4f7a35d7587cc437a79dc 100644 (file)
--- a/emacs/notmuch.el
+++ b/emacs/notmuch.el
@@ -577,7 +577,7 @@ thread."
     (notmuch-search-foreach-result beg end
       (lambda (pos)
        (setq output (append output (notmuch-search-get-tags pos)))))
-    output))
+    (delete-dups output)))
 
 (defun notmuch-search-interactive-tag-changes (&optional initial-input)
   "Prompt for tag changes for the current thread or region.
@@ -814,13 +814,13 @@ non-authors is found, assume that all of the authors match."
        (setq invisible-string (notmuch-search-author-propertize invisible-string)))
       ;; If there is any invisible text, add it as a tooltip to the
       ;; visible text.
-      (unless (string= invisible-string "")
+      (unless (string-empty-p invisible-string)
        (setq visible-string
              (propertize visible-string
                          'help-echo (concat "..." invisible-string))))
       ;; Insert the visible and, if present, invisible author strings.
       (insert visible-string)
-      (unless (string= invisible-string "")
+      (unless (string-empty-p invisible-string)
        (let ((start (point))
              overlay)
          (insert invisible-string)
@@ -1162,8 +1162,6 @@ Point should be at the beginning of the line."
 
 ;;; _
 
-(setq mail-user-agent 'notmuch-user-agent)
-
 (provide 'notmuch)
 
 ;; After provide to avoid loops if notmuch was require'd via notmuch-init-file.