line terminators when:
a) running under windows, and
b) the file on the disk (when DrRacket first opens it)
contains all CRLF line endings.
In all other situations, the file is saved with LF terminators.
Before this commit, DrRacket would always use the platform-specific
convention, regardless of the original content of the file.
closes PR 12242
original commit: 4a2757f2004fa84901cbae7ff9a257616ce7acaa
This is a backwards incompatible change; there is a more complex change
that just stubs this stuff out that may be better that we may need
isntead of this commit.
original commit: 048fa1d7b8b5e17ac58181b068d779806bd5c59a
