* src/abstract_crypto.h: Some cleanup.

* src/abstract_io.h: Likewise.
* src/channel.c: Likewise.
* src/channel.h: Likewise.
* src/channel_commands.h: Likewise.
* src/connection.h: Likewise.
* src/connection_commands.c: Likewise.
* src/dh_exchange.c: Likewise.
* src/exception.h: Likewise.
* src/gateway.c: Likewise.
* src/gateway_channel.c: Likewise.
* src/gateway_commands.c: Likewise.
* src/handshake.c: Likewise.
* src/handshake.h: Likewise.
* src/io.h: Likewise.
* src/io_commands.c: Likewise.
* src/io_commands.h: Likewise.
* src/keyexchange.h: Likewise.
* src/lsh.c: Likewise.
* src/lsh_proxy.c: Likewise.
* src/lshg.c: Likewise.
* src/publickey_crypto.h: Likewise.
* src/randomness.c: Likewise.
* src/randomness.h: Likewise.
* src/read_packet.c: Likewise.
* src/rsa.c: Likewise.
* src/server_pty.h: Likewise.
* src/server_session.c: Likewise.
* src/sexp.h: Likewise.
* src/sexp_parser.c: Likewise.
* src/sexp_streamed_parser.c: Likewise.
* src/sexp_test.c: Likewise.
* src/spki_commands.c: Likewise.
* src/spki_commands.h: Likewise.
* src/ssh1_fallback.c: Likewise.
* src/tcpforward.c: Likewise.
* src/unix_random.c: Likewise.
* src/zlib.c: Likewise.

Rev: src/abstract_crypto.h:1.34
Rev: src/abstract_io.h:1.33
Rev: src/channel.c:1.89
Rev: src/channel.h:1.63
Rev: src/channel_commands.h:1.18
Rev: src/command.h:1.48
Rev: src/connection.h:1.58
Rev: src/connection_commands.c:1.34
Rev: src/dh_exchange.c:1.11
Rev: src/exception.h:1.24
Rev: src/gateway.c:1.4
Rev: src/gateway_channel.c:1.6
Rev: src/gateway_commands.c:1.7
Rev: src/handshake.c:1.2
Rev: src/handshake.h:1.2
Rev: src/io.h:1.70
Rev: src/io_commands.c:1.35
Rev: src/io_commands.h:1.15
Rev: src/keyexchange.h:1.49
Rev: src/lsh.c:1.128
Rev: src/lsh_proxy.c:1.20
Rev: src/lshg.c:1.5
Rev: src/publickey_crypto.h:1.43
Rev: src/randomness.c:1.22
Rev: src/randomness.h:1.13
Rev: src/read_packet.c:1.49
Rev: src/rsa.c:1.12
Rev: src/server_pty.h:1.12
Rev: src/server_session.c:1.56
Rev: src/sexp.h:1.32
Rev: src/sexp_parser.c:1.19
Rev: src/sexp_streamed_parser.c:1.28
Rev: src/sexp_test.c:1.15
Rev: src/spki_commands.c:1.15
Rev: src/spki_commands.h:1.9
Rev: src/ssh1_fallback.c:1.10
Rev: src/tcpforward.c:1.56
Rev: src/unix_random.c:1.4
Rev: src/zlib.c:1.29