Merge bitcoin/bitcoin#30254: test: doc: fix units in tx-size standardness test (s/vbytes/weight units)

d1581c6 test: doc: fix units in tx size standardness test (s/vbytes/weight units) (Sebastian Falbesoner)

Pull request description:

  This small fixup PR is a late follow-up for #17947 (commit 4537ba5), where the wrong units has been used in the comments for the large tx composition.

ACKs for top commit:
  tdb3:
    ACK d1581c6
  ismaelsadeeq:
    ACK d1581c6
  glozow:
    ACK d1581c6

Tree-SHA512: ea2de42174f9dca0608275ea377c852ebddc5a04a2b32248ce808aea33d7e00cdee3a225b24c0cf426c69646cccbbc31273c62f7bc1647bb3443a61de3b15670

Author: glozow

src/test/transaction_tests.cpp

@@ -904,15 +904,15 @@ BOOST_AUTO_TEST_CASE(test_IsStandard)
     t.vin.clear();
     t.vin.resize(2438); // size per input (empty scriptSig): 41 bytes
     t.vout[0].scriptPubKey = CScript() << OP_RETURN << std::vector<unsigned char>(19, 0); // output size: 30 bytes
-    // tx header:                12 bytes =>     48 vbytes
-    // 2438 inputs: 2438*41 = 99958 bytes => 399832 vbytes
-    //    1 output:              30 bytes =>    120 vbytes
-    //                      ===============================
-    //                                total: 400000 vbytes
+    // tx header:                12 bytes =>     48 weight units
+    // 2438 inputs: 2438*41 = 99958 bytes => 399832 weight units
+    //    1 output:              30 bytes =>    120 weight units
+    //                      ======================================
+    //                                total: 400000 weight units
     BOOST_CHECK_EQUAL(GetTransactionWeight(CTransaction(t)), 400000);
     CheckIsStandard(t);
 
-    // increase output size by one byte, so we end up with 400004 vbytes
+    // increase output size by one byte, so we end up with 400004 weight units
     t.vout[0].scriptPubKey = CScript() << OP_RETURN << std::vector<unsigned char>(20, 0); // output size: 31 bytes
     BOOST_CHECK_EQUAL(GetTransactionWeight(CTransaction(t)), 400004);
     CheckIsNotStandard(t, "tx-size");