1) Update copyright notice. 2) Eliminate "struct arc4_stream *as" arg since only single arg is possible. 3) Set rs.j = rs.i after arc4random key schedule to be more like arc4 stream cipher.
1) Update copyright notice.
2) Eliminate "struct arc4_stream *as" arg since only single arg is
possible.
3) Set rs.j = rs.i after arc4random key schedule to be more like arc4
stream cipher.

Obtained from:  OpenBSD

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