Add extra debugging (#165571).

[Derek Atkins]

Log Message:
-----------
Add extra debugging (#165571).

	* src/engine/Scrub.c:
	* src/engine/Transaction.c:
	  Add the transaction guid to some error warning messages.
	  Fixes #165571.

Modified Files:
--------------
    gnucash:
        ChangeLog
    gnucash/src/engine:
        Scrub.c