Fix missing ending newline in db structure dump:

  When dumping database structure with `rake db:structure:dump` and
using migrations, the resulting file will not end with a newline char.
Although it's not mandatory, it breaks a lot of simple use cases with
programs like cat, more, grep, etc.

  This changes use `puts' instead of `<<' to append migration versions
data to the dump and also split the line where this is happening as it
was a bit long.

1 files changed, 3 insertions, 1 deletions

diff --git a/activerecord/lib/active_record/railties/databases.rake b/activerecord/lib/active_record/railties/databases.rake
index b25c0270c2..259d0ff12b 100644
--- a/activerecord/lib/active_record/railties/databases.rake
+++ b/activerecord/lib/active_record/railties/databases.rake
@@ -300,7 +300,9 @@ db_namespace = namespace :db do
       end
 
       if ActiveRecord::Base.connection.supports_migrations?
-        File.open(filename, "a") { |f| f << ActiveRecord::Base.connection.dump_schema_information }
+        File.open(filename, "a") do |f|
+          f.puts ActiveRecord::Base.connection.dump_schema_information
+        end
       end
       db_namespace['structure:dump'].reenable
     end