Fix the MDIOCDETACH ioctl() for md(4). Now that the md_file field in
the mdio structure is an array and not a pointer, we cannot test for
it to be NULL. It never is. Instead, test for md_file[0] to be '\0'.
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marcel Authored on - Parents
- rS137639: UNIX conformance: If -r -f on non-existent directory, don't emit error.
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