Use activerecord_sane_schema_dumper
What does this MR do?
EE side of https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/6827.
ActiveRecord::SaneSchemaDumper
modifies the behavior of Rails’ActiveRecord::SchemaDumper
so that the generateddb/schema.rb
file doesn’t contain any useless/harmful whitespace column alignment.
Why was this MR needed?
To reduce potential conflicts in db/schema.rb
(see https://gitlab.com/gitlab-org/gitlab-ee/issues/715).