Resolve 2 possible error(s) in volume frus1945Berlinv01

[WaxCylinderRevival]

Volume: frus1945Berlinv01 Volume Dates: 1944 to 1945

• [x] https://history.state.gov/historicaldocuments/frus1945Berlinv01/d229

  • EARLIER than coverage dates
  • @when value: 1937-07-01
  • Recorded date: Undated
  • [x] Correct date:

    [<date when="1945-07-01" ana="#date_undated-inferred-from-document-content">Undated</date>.]

• [x] https://history.state.gov/historicaldocuments/frus1945Berlinv01/d250

  • EARLIER than coverage dates
  • @when value: 1937-07-01
  • Recorded date: Undated
  • [x] Correct date: [Undated.]

[WaxCylinderRevival]

• [x] Commit changes: https://github.com/HistoryAtState/frus/commit/1aea7dc027ac05e051be95e0420dfa61170bc56c