contrib/lisp/org-export-generic.el

Wes Hardaker's generic exported in contrib/lisp needs a small changed to
make it compatible with the :for-backend generic parameter introduced in
commit ed6d6760268a18ff5c49f4d98b433f6cf9500e1e.

contrib/lisp/org-export-generic.el

@@ -620,7 +620,7 @@ underlined headlines.  The default is 3."
 	 (lines (org-split-string
 		 (org-export-preprocess-string
 		  region
-		  :for-ascii t
+		  :for-backend 'ascii
 		  :skip-before-1st-heading
 		  (plist-get opt-plist :skip-before-1st-heading)
 		  :drawers (plist-get export-plist :drawers-export)