Remove trailing space characters

Trailing space characters do nothing except take up disk space, they should be removed

.env

@@ -35,7 +35,7 @@
 # Put these in .env.production or .env.development to define your dev/prod
 # databases. Do not define it in .env or .env.local! It will be taken as your
 # test database too, and rails will wipe it if you run the test suite.
-# 
+#
 # If you are connecting to PostgreSQL via socket, omit the hostname (e.g.
 # postgresql:///danbooru2)
 # export DATABASE_URL="postgresql://localhost/danbooru2"