logilab-devtools #85914 lgp_suffix option fails with type error [resolved]

Error while running checker lgp.build: cannot concatenate 'str' and 'int' objects
Traceback (most recent call last):
File "/usr/lib/python2.6/dist-packages/apycotlib/atest.py", line 280, in run_checker
status = checker.check(self)
File "/usr/lib/python2.6/dist-packages/apycotlib/checkers/__init__.py", line 27, in check
self.set_status(self.do_check(test))
File "/var/lib/narval/plugins/lgp.py", line 109, in do_check
args += ['--suffix', '~rev' + repo.revision()]
TypeError: cannot concatenate 'str' and 'int' objects