diff -X option under DOS

[Pierre Raoul]

Hello,

It's not really a bug but rather a lack of information. To create a file to
the  -X option, you must put one pattern by line... and each line must be
ended by a LF ('\n'). But under DOS, any editor will end a line with CR+LF
('\r\n') by default. So the patterns of such a file will never be match, for
diff will search pattern+CR...

I didn't find this piece of information in the manuel and it took me quite a
time before I get it.

Neither option -w nor --strip-trailing-cr change this point.

I think it will be great:
- to clearly stated this point in the manuel,
- to add a option to diff, to choice the type of eol (LF or CR+LF) in -X
file.

Regards

Pierre Raoul

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