current working directory. This is useful for minimum-checkout
merging.
-To pretend you have a file with mode and sha1 at path, say:
+To pretend you have a file at path with mode and sha1, say:
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-$ git update-index --cacheinfo <mode>,<sha1>,<path>
+$ git update-index --
add --cacheinfo <mode>,<sha1>,<path>
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`--info-only` is used to register files without placing them in the object