remove trailing white-spaces from app/helpers/enumerations_helper.rb.
remove trailing white-spaces from app/helpers/groups_helper.rb.
remove trailing white-spaces from app/models/project_custom_field.rb.
remove trailing white-spaces from app/models/role.rb.
remove trailing white-spaces from app/models/user_custom_field.rb.
remove trailing white-spaces from app/models/journal.rb.
remove trailing white-spaces from app/models/issue_priority_custom_field.rb.
remove trailing white-spaces from app/models/issue_priority.rb.
remove trailing white-spaces from app/helpers/boards_helper.rb.
remove trailing white-spaces from app/helpers/calendars_helper.rb.
