[PATCH] emacs/notmuch.el: don't use 'function' as variable name.

[David Bremner <david@tethera.net>]

In principle this should work, but at least in some pre-release
versions of emacs26, this causes problems inside lexical let [1].

[1]: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=26406
---
 emacs/notmuch.el | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/emacs/notmuch.el b/emacs/notmuch.el
index d8d3afeb..40b9fabd 100644
--- a/emacs/notmuch.el
+++ b/emacs/notmuch.el
@@ -402,17 +402,17 @@ returns nil"
     (next-single-property-change (or pos (point)) 'notmuch-search-result
 				 nil (point-max))))
 
-(defun notmuch-search-foreach-result (beg end function)
-  "Invoke FUNCTION for each result between BEG and END.
+(defun notmuch-search-foreach-result (beg end fn)
+  "Invoke FN for each result between BEG and END.
 
-FUNCTION should take one argument.  It will be applied to the
+FN should take one argument.  It will be applied to the
 character position of the beginning of each result that overlaps
 the region between points BEG and END.  As a special case, if (=
-BEG END), FUNCTION will be applied to the result containing point
+BEG END), FN will be applied to the result containing point
 BEG."
 
   (lexical-let ((pos (notmuch-search-result-beginning beg))
-		;; End must be a marker in case function changes the
+		;; End must be a marker in case fn changes the
 		;; text.
 		(end (copy-marker end))
 		;; Make sure we examine at least one result, even if
@@ -423,7 +423,7 @@ BEG."
     ;; pos.
     (while (and pos (or (< pos end) first))
       (when (notmuch-search-get-result pos)
-	(funcall function pos))
+	(funcall fn pos))
       (setq pos (notmuch-search-result-end pos)
 	    first nil))))
 ;; Unindent the function argument of notmuch-search-foreach-result so
-- 
2.11.0