logilab-common #117580 TabError in logilab.common.registry with Python 3 [validation pending]

logilab-common 0.59.0 introduced 2 tabs in registry.py, but the rest of this file uses spaces, so a TabError now occurs with Python 3.

$ python3.2 -c 'import logilab.common.registry'
Traceback (most recent call last):
  File "<string>", line 1, in <module>
  File "/usr/lib64/python3.2/site-packages/logilab/common/registry.py", line 807
    return False
TabError: inconsistent use of tabs and spaces in indentation

Fix (for original registry.py not transformed by 2to3):

sed -e "806s/\t\t/               /" -i registry.py
appeared in<not specified>
done in0.59.1
load left0.000
closed by#e22e9a85b9a4 remove 2 accidentally introduced tabs breaking python 3 compat. closes #117580