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this pr tries to fix gnu test case "link deref" for cp utility
these are the changes made:
when trying to copy a folder without
-R
before throwing "-r not specified" error, cp would make sure that source is not a symlink and noderef option is not given. This way, when both of them are given, it would treat it as a file and copy the symlink itself.to match gnu cp's behavior,
-R
won't disable dereference if--link
is given