Automatically merged updates to draft EIP(s) 1767 (ethereum#2262)

Hi, I'm a bot! This change was automatically merged because:

 - It only modifies existing Draft or Last Call EIP(s)
 - The PR was approved or written by at least one author of each modified EIP
 - The build is passing

EIPS/eip-1767.md

@@ -220,7 +220,7 @@ type Block {
     # Logs returns a filtered set of logs from this block.
     logs(filter: BlockFilterCriteria!): [Log!]!
     # Account fetches an Ethereum account at the current block's state.
-    account(address: Address!): Account!
+    account(address: Address!): Account
     # Call executes a local call operation at the current block's state.
     call(data: CallData!): CallResult
     # EstimateGas estimates the amount of gas that will be required for
@@ -303,7 +303,7 @@ type Pending {
   # Transactions is a list of transactions in the current pending state.
   transactions: [Transaction!]
   # Account fetches an Ethereum account for the pending state.
-  account(address: Address!): Account!
+  account(address: Address!): Account
   # Call executes a local call operation for the pending state.
   call(data: CallData!): CallResult
   # EstimateGas estimates the amount of gas that will be required for