Changes in version 2.0.12g8:

* Start of the 12g series, with a GNU-style configure script and
  long-named options.
* Added the -t --batch option, similar to -f.
* Improved detection of files that are locked under RCS or SCCS.  
* Reinstate the -E option to remove output files that are empty after
  being patched.
* Print the system error message when system calls fail.
* Fixed various bugs and portability problems.
