Log Message:
Update dgd to 1.2.0.4.  Patch provided by the maintainer, Scott Thompson,
in PR pkg/24698.

Changes:
 - Fixed a bug with deleting mapping elements in atomic code.
 - Allow allocation of blocks up to 1G in size.
 - Fixed a bug that could cause a crash during the atomic commit phase.
 - While restoring a callout, not all appropriate fields were zeroed.
 - Some fixes to get restarting to work.
 - Make sure that a callout handle is not truncated to 16 bits before an
   attempt is made to remove it.
 - Made sure that destructing the driver object in atomic code does not lead
   to trouble.
 - Fixed a problem with driver->recompile() in multi-level atomic code.
 - Input blocking for binary connections didn't work.

Additionally, this update changes LICENSE to the more accurate
"fee-based-commercial-use."