org-element: Parse table cells with missing ending space

* lisp/org-element.el (org-element-table-cell-successor): Parse table
  cells with missing ending space.

lisp/org-element.el

@@ -3393,7 +3393,7 @@ LIMIT bounds the search.
 
 Return value is a cons cell whose CAR is `table-cell' and CDR is
 beginning position."
-  (when (looking-at "[ \t]*.*?[ \t]+|") (cons 'table-cell (point))))
+  (when (looking-at "[ \t]*.*?[ \t]*|") (cons 'table-cell (point))))
 
 
 ;;;; Target