[osbs] Add NVRA of created image into main log

Currently the main log only says the phase started and finished. With
this patch each created image will be mentioned by its name, version,
release and arch.

Signed-off-by: Lubomír Sedlář <lsedlar@redhat.com>

pungi/phases/osbs.py

@@ -108,6 +108,8 @@ class OSBSThread(WorkerThread):
             data.update(archive['extra'])
             data.update(metadata)
             arch = archive['extra']['image']['arch']
+            self.pool.log_debug('Created Docker base image %s-%s-%s.%s' % (
+                metadata['name'], metadata['version'], metadata['release'], arch))
             self.pool.metadata.setdefault(
                 variant.uid, {}).setdefault(arch, []).append(data)