### ENHANCEMENTS:
- Allow the server side to restrict checksum & compression choices via
- the environment variables.
+ the same environment variables the client uses.
- Simplify how the negotiation environment variables apply to older rsync
versions.
+ - Do not allow a negotiated checksum or compression choice of "none" unless
+ the user authorized it via an environment variable or command-line option.
+
- Improved the man page a bit more.
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