Fix the "git modified" issue on the preserve-comments-crlf.s.
rL371473 corrected the line ending (to crlf) in preserve-comments-crlf.s, but it causes a wired issue on git
repository (I ran git pull today, it showed a local change of that file even I did not change anything).
Reviewed By: gribozavr
Subscribers: llvm-commits, cfe-commits
Differential Revision: https://reviews.llvm.org/D67391