Mark .bat files as requiring CR/LF endings
Just like the natural line ending for Unix shell scripts consist of a
single Line Feed, the natural line ending for (DOS) Batch scripts
consists of a Carriage Return followed by a Line Feed.
It seems that both Unix shell script interpreters and the interpreter
for Batch scripts (`cmd.exe`) are keen on seeing the "right" line
Signed-off-by: Johannes Schindelin <firstname.lastname@example.org>
Signed-off-by: Junio C Hamano <email@example.com>