fix T4981-V3 and T9208 tests for no newline at end of file warning

Test Plan: validated on Linux and tested on Solaris

Reviewers: ezyang, austin

Reviewed By: ezyang, austin

Subscribers: phaskell, simonmar, relrod, ezyang, carter

Differential Revision: https://phabricator.haskell.org/D134
fix T4981-V3 to avoid DOS line endings