5696 ::refcount -r does not display info about removal of holds

Reviewed by: Matthew Ahrens <mahrens@delphix.com>
Reviewed by: George Wilson <george@delphix.com>
Reviewed by: Paul Dagnelie <paul.dagnelie@delphix.com>
Reviewed by: Basil Crow <basil.crow@delphix.com>
Reviewed by: Bayard Bell <buffer.g.overflow@gmail.com>
Approved by: Dan McDonald <danmcd@omniti.com>

usr/src/cmd/mdb/common/modules/zfs/zfs.c

@@ -2612,7 +2612,7 @@ refcount(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv)
 		off = mdb_ctf_offsetof_by_name("refcount_t", "rc_removed");
 		if (off == -1)
 			return (DCMD_ERR);
-		mdb_pwalk("list", reference_cb, (void*)B_FALSE, addr + off);
+		mdb_pwalk("list", reference_cb, (void*)B_TRUE, addr + off);
 	}
 
 	return (DCMD_OK);