version of ipdb seems to use '-' instead of '_'

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@34892 20353a03-c40f-0410-a6d1-a30d3c3de9de

buildout/profiles/versions.cfg

@@ -3,7 +3,7 @@
 erp5diff = 0.2
 python-memcached = 1.45
 PyXML = 0.8.4
-ipdb = 0.1dev_r1716
+ipdb = 0.1dev-r1716
 ipython = 0.10
 itools = 0.20.8
 numpy = 1.3.0