"refuse options" value.  Also changed the idiom used to mark refused
options in the popt struct.

identified what was wrong.

- Don't use the NGROUPS_MAX define.

- The do_mkstemp() routine now preserves the errno value from fchmod()
  if that call fails.
- Improved the CHECK_RO macro stuff.

shouldn't generate a path with a double-leading slash anymore.

to do when the root of the transfer was "/").

protocols are no longer supported.

should be minimized.

- Optimized the keep_backup() code.

pointer is no longer valid.

output in older rsync versions).

avoid core-dump.

build-farm machines.

if flist->hlink_pool isn't set (instead of neglecting to read the idev
info).

released 15 Mar 1999) and activated warnings for protocols
less than 25 (2.5.0 released 23 Aug 2001)

pools.

command in do_cmd().