patch 9.1.0831: 'findexpr' can't be used as lambad or Funcref

Problem:  'findexpr' can't be used for lambads
          (Justin Keyes)
Solution: Replace the findexpr option with the findfunc option
          (Yegappan Lakshmanan)

related: #15905
closes: #15976

Signed-off-by: Yegappan Lakshmanan <yegappan@yahoo.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/runtime/doc/quickref.txt b/runtime/doc/quickref.txt
index 0f7453a..a43d28f 100644
--- a/runtime/doc/quickref.txt
+++ b/runtime/doc/quickref.txt
@@ -1,4 +1,4 @@
-*quickref.txt*  For Vim version 9.1.  Last change: 2024 Oct 22
+*quickref.txt*  For Vim version 9.1.  Last change: 2024 Nov 02
 
 
 		  VIM REFERENCE MANUAL    by Bram Moolenaar
@@ -707,7 +707,7 @@
 'fileignorecase'  'fic'     ignore case when using file names
 'filetype'	  'ft'	    type of file, used for autocommands
 'fillchars'	  'fcs'     characters to use for displaying special items
-'findexpr'	  'fexpr'   expression to evaluate for |:find|
+'findfunc'	  'ffu'     function to be called for the |:find| command
 'fixendofline'	  'fixeol'  make sure last line in file has <EOL>
 'fkmap'		  'fk'	    obsolete option for Farsi
 'foldclose'	  'fcl'     close a fold when the cursor leaves it