[O] format for clocktable

[Jean Wallemacq]

Hi, I recently switched from org-mode 6.xx to 8.0.3.
I used to have results >= 24:00 in the form of 34:59 for example, not 1d 10:59 
- see below
I do not manage to get back the old format, which is more convenient for me.
The manual mention a :formatter switch, but I have not found information about 
this yet

Thank for your help

J

#+BEGIN: clocktable :maxlevel 4 :emphasize nil :scope file :block week
#+CAPTION: Clock summary at [2013-05-25 Sat 17:09], for week 2013-W21.
| Headline              | Time       |          |       |
|-----------------------+------------+----------+-------|
| *Total time*          | *1d 10:59* |          |       |
|-----------------------+------------+----------+-------|
| Journal               | 1d 10:59   |          |       |
| \__ Mai               |            | 1d 10:59 |       |
| \_____ [2013-05-24 Fri] |            |          |  6:15 |
| \_____ [2013-05-23 Thu] |            |          | 13:08 |
| \_____ [2013-05-22 Wed] |            |          |  7:46 |
| \_____ [2013-05-21 Tue] |            |          |  7:50 |
#