* increased the size of tdirent to
   a) compensate for the fact that the kernel assumes it's a multiple of 8
      bytes
   b) reduce the number of system calls we have to perform when walking a
      directory
  (fixes mantis #24885 and probably also #20125 and #23732)


git-svn-id: http://svn.freepascal.org/svn/fpc/trunk@26150 3ad0048d-3df7-0310-abae-a5850022a9f2