Link git.o.o in bug updates

* jeepyb/cmd/update_bug.py: Formerly URLs were provided to
github.com but we have somewhere better to send browsers now.

Change-Id: I2d738f163374324241b15aef285f126f85ddc5d2
diff --git a/jeepyb/cmd/update_bug.py b/jeepyb/cmd/update_bug.py
index fdf2b5a..f714e18 100644
--- a/jeepyb/cmd/update_bug.py
+++ b/jeepyb/cmd/update_bug.py
@@ -59,7 +59,8 @@
                               submitter, branch, git_log, related=False):
     subject = '%s merged to %s (%s)' % (fix_or_related_fix(related),
                                         u.short_project_name(project), branch)
-    git_url = 'http://github.com/%s/commit/%s' % (project, commit)
+    git_url = 'https://git.openstack.org/cgit/%s/commit/?id=%s' % (project,
+                                                                   commit)
     body = '''Reviewed:  %s
 Committed: %s
 Submitter: %s