other access resulted in group and other access being left off when the
'-p' option was not used.  This fixes it by reintroducing the ACCESSPERMS
mask and setting permissions to (file->mode & ACCESSPERMS) if preserve_perms
is off.  I decided to change the mask INITPERMMASK to INITACCESSPERMS at
the same time.  When preserve_perms is off, rsync is restored to the
previous behavior of having the permissions of the original file with the
umask and setuid/setgid bits shut off.

Also, I decided that a check for "(updated && (file->mode & ~ACCESSPERMS))"
is no longer needed since as far as I can tell that would have only affected
permissions when not running as root and when a chgrp was done to a group
the user was not a member of, using system V chgrp semantics.  This is no
longer allowed.