+dit(bf(--sockopts)) This option can provide endless fun for people
+who like to tune their systems to the utmost degree. You can set all
+sorts of socket options which may make transfers faster (or
+slower!). Read the man page for the setsockopt() system call for
+details on some of the options you may be able to set. By default no
+special socket options are set. This only affects direct socket
+connections to a remote rsync daemon. This option also exists in the
+bf(--daemon) mode section.
+