[patch windres]: Allow short-digit FILEVERSION and PRODUCTVERSION

[nick clifton]

Hi Kai,

> binutils/
> 2012-07-25  Kai Tietz
>
>          * rcparse.y (FILEVERSION): Use optcnumexpr instead of cnumexpr.
>          (PRODUCTVERSION): Likewise.
>
> binutils/testsuite
> 2012-07-25  Kai Tietz
>
>          * binutils-all/windres/version_small.rc: New test.
>          * binutils-all/windres/version_small.rsd: Likewise.
>
> Tested for i686-w64-mingw32, and x86_64-w64-mingw32.  Ok for apply?

Approved, please apply.

Cheers
   Nick