* lisp/org-duration.el (org-duration--h:mm-re):
(org-duration--h:mm:ss-re): Tolerate leading in trailing blanks.
Change into a defconst.
(org-duration-set-regexps): Tolerate leading in trailing blanks.
Reported-by: Detlef Steuer <steuer@unibw-hamburg.de>
<http://permalink.gmane.org/gmane.emacs.orgmode/112111>