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Test Name: link.23 Unresolved

	Test Description:
EROFS in errno and a return value of -1 on a call to link() when the
requested link requires writing in a directory on a read-only file
system.
Posix Ref: Component LINK Assertion 5.3.4.4-63(C)

	Test Information:
deletion reason: mnt_ro(/dev/loop0, link-d.23) failed