[PATCH] emacs: use (system-name) instead of system-name

[Jani Nikula]

Fix the deprecation warning:

In notmuch-maildir-fcc-make-uniq-maildir-id:
emacs/notmuch-maildir-fcc.el:279:53:Warning: ‘system-name’ is an obsolete
    variable (as of 25.1); use (system-name) instead

I've used (system-name) since at least 2011, so it must have been
around quite a while.
---
 emacs/notmuch-maildir-fcc.el | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/emacs/notmuch-maildir-fcc.el b/emacs/notmuch-maildir-fcc.el
index a754b60c7ea3..777658ccfb4a 100644
--- a/emacs/notmuch-maildir-fcc.el
+++ b/emacs/notmuch-maildir-fcc.el
@@ -276,7 +276,7 @@ If CREATE is non-nil then create the folder if necessary."
 (defun notmuch-maildir-fcc-make-uniq-maildir-id ()
    (let* ((ftime (float-time))
 	  (microseconds (mod (* 1000000 ftime) 1000000))
-	  (hostname (notmuch-maildir-fcc-host-fixer system-name)))
+	  (hostname (notmuch-maildir-fcc-host-fixer (system-name))))
      (setq notmuch-maildir-fcc-count (+ notmuch-maildir-fcc-count 1))
      (format "%d.%d_%d_%d.%s"
 	     ftime
-- 
2.11.0