server.  This ought to exercise (exorcise? :-) a bug in 2.5.3.  It
ought to fail there and pass with later versions.

try to upload a file from rsync 2.5.2 to rsync 2.5.3

and don't try to call it if it doesn't exist.

the --no-blocking-io and --no-whole-file options.  This adds it back in.

trees to reproducibly test performance on specified size sets.

an HTTP proxy.  This parallels the recent addition of a log message
for opening ssh connections.

This parallels the recent addition of a log message for opening ssh
connections.

gcc, to quieten its worries about parameters that must always be
unused.

don't it on a machine that does have supplementary groups would be a
security hole.  If this breaks anything we'll fix it later.