[PATCH v3 6/6] t4051: mark supporting files as requiring LF-only line endings

The test t4051-diff-function-context.sh passes on Linux when core.autocrlf=true even without marking its support files as LF-only, but they fail when core.autocrlf=true in Git for Windows' SDK.

The reason is that `grep ... >file.c.new` will keep CR/LF line endings on Linux (obviously treating CRs as if they were regular characters), but will be converted to LF-only line endings with MSYS2's grep that is used in Git for Windows.

As we do not want to validate the way the available `grep` works, let's just mark the input as LF-only and move on.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>
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 t/.gitattributes | 1 +
 1 file changed, 1 insertion(+)