Improve docstring of `org-log-repeat'

Patch by Dan Griswold

lisp/org.el

@@ -2022,11 +2022,11 @@ When nil, the notes will be orderer according to time."
 
 (defcustom org-log-repeat 'time
   "Non-nil means, record moving through the DONE state when triggering repeat.
-An auto-repeating tasks  is immediately switched back to TODO when marked
-done.  If you are not logging state changes (by adding \"@\" or \"!\" to
-the TODO keyword definition, or recording a closing note by setting
-`org-log-done', there will be no record of the task moving through DONE.
-This variable forces taking a note anyway.  Possible values are:
+An auto-repeating task is immediately switched back to TODO when
+marked DONE. If you are not logging state changes (by adding \"@\"
+or \"!\" to the TODO keyword definition), or set `org-log-done' to
+record a closing note, there will be no record of the task moving
+through DONE. This variable forces taking a note anyway.
 
 nil     Don't force a record
 time    Record a time stamp