Log Message:
- The f2c-f77 script that emulates a fortran comiler has deviated so much
  from the original, that it has become easier to maintain it as its own
  file instead of a patch, so do that.

- Improve the shell quoting quite a bit in the f2c-f77 script.  Now you
  can pass things like -DFOO=this\ is\ a\ test and have the escapes
  actually work when the arguments get passed down to the underlying
  commands.  Many thanks to Alan Barrett for help with the shell quoting.

- bump pkgrev