Make org-open-at-point only ask once whether new header should be created

* lisp/org.el (org-open-at-point): Make org-open-at-point only ask once
about creating a new headline

When following "thisfile" links org-open-at-point is kind enough to
retry org-link-search again after widening the buffer it can't be
found. However org-link-search also asks the question "No match -
create this as a new heading? (y or n)" when target can't be
found. This means that the question is asked twice when following a
nonexistent link and answering no.

This is fixed by setting org-link-search-inhibit-query in first try,
so only second invocation asks the question.

TINYCHANGE

Patch by Anders Waldenborg

lisp/org.el

@@ -9527,7 +9527,8 @@ application the system uses for this file type."
 			      ((equal arg '(16)) ''org-occur)
 			      (t nil))
 		       ,pos)))
-	    (condition-case nil (eval cmd)
+	    (condition-case nil (let ((org-link-search-inhibit-query t))
+				  (eval cmd))
 	      (error (progn (widen) (eval cmd))))))
 
 	 (t