[O] Fix for clocking in when org-clock-into-drawer is not a string

[Tom Hinton]

Hello,

I have encountered a fault in recent versions of org when clocking into a task 
with a dangling clock when
org-clock-into-drawer is an integer rather than a string. It appears the error 
was a presumption that
org-clock-into-drawer would be a string for the construction of a regex. 
Attached is a trivial single line patch
which seems to fix this for me. make test reports no additional test failures 
with the patch applied.

All the best,

Tom Hinton

>From 498b0ae295453e1ce5ef42d54cb8dfb9f930809e Mon Sep 17 00:00:00 2001
From: Tom Hinton <address@hidden>
Date: Wed, 12 Aug 2015 12:46:47 +0100
Subject: [PATCH] Fix clock in when org-clock-into-drawer is integer

* org-clock.el (org-clock-jump-to-current-clock):
  fixed a bug wherein org-clock-jump-to-current-clock did not work if 
org-clock-into-drawer
  was not either a string or nil.

This is a TINYCHANGE, although I am happy to assign copyright to the FSF.
---
 lisp/org-clock.el | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lisp/org-clock.el b/lisp/org-clock.el
index e44da73..6de093f 100644
--- a/lisp/org-clock.el
+++ b/lisp/org-clock.el
@@ -950,7 +950,7 @@ If necessary, clock-out of the currently active clock."
       (when drawer
        (org-with-wide-buffer
         (let ((drawer-re (format "^[ \t]*:%s:[ \t]*$"
-                                 (regexp-quote (or drawer "LOGBOOK"))))
+                                 (regexp-quote (if (stringp drawer) drawer 
"LOGBOOK"))))
               (beg (save-excursion (outline-back-to-heading t) (point))))
           (catch 'exit
             (while (re-search-backward drawer-re beg t)
-- 
2.1.4

-- 
http://www.cse.org.uk/about-us/staff#Tom-Hinton