Log Message:

(1) MESSAGE fix typo on PATH (example -> examples)

(2) PLIST add one entry
  +${EMACS_LISPPREFIX}/tc-2.3.1/tc-is22.el

(3) patches/patch-lisp_tc-sysdep.el (+ distinfo)
   Upstream has change. but that is not enough
   So patch is still there with minor mod.
   And correct the comment for the patch.