nfs: Fix copy-and-paste error in debug message

The debug message of decode_attr_lease_time incorrectly
says "file size". Fix it to "lease time".
Signed-off-by: Donald Buczek <buczek@molgen.mpg.de>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>

fs/nfs/nfs4xdr.c

@@ -3427,7 +3427,7 @@ static int decode_attr_lease_time(struct xdr_stream *xdr, uint32_t *bitmap, uint
 		*res = be32_to_cpup(p);
 		bitmap[0] &= ~FATTR4_WORD0_LEASE_TIME;
 	}
-	dprintk("%s: file size=%u\n", __func__, (unsigned int)*res);
+	dprintk("%s: lease time=%u\n", __func__, (unsigned int)*res);
 	return 0;
 }