DOS line-endings

[phadej]

When file has DOS line-endings (\r\n), fix-whitespace does nothing. Not even complain.

I think it should be able to convert line-endings to unix ones, i.e. \n.

EDIT: I can write a patch if this feature is ok to have.

[andreasabel]

Yes, I guess this is useful.
Should probably not be on by default, but under some option, e.g. --dos2unix or --lf.