drush-ops/drush — pull request #794 by tstoeckler (2014-09-05 08:32:13+00:00)
Title: Warn the user if migrate-manifest did not find some (or all) of the migrations

In case you have incorrectly prepared your target D8 site and the migrations are not in the system `migrate-manifest` will run through without giving any feedback, even though it does not actually perform any migrations. This commit adds a warning to the output in that case.