Merge #11746: trivial: Fix unsuccessful typo

d2ea2bc trivial: Fix unsuccessful typo (practicalswift)

Pull request description:

  Fix unsuccessful typo.

Tree-SHA512: 48dde6764603b91cdd698fd9b5ea200961009df07f5a024430aaf81c50d889ed72681d76ac0832cdafaa2fd2be32ef3637ba641308de5eea6146f3b1074e9b19

Author: sipa

src/test/txvalidation_tests.cpp

@@ -49,7 +49,7 @@ BOOST_FIXTURE_TEST_CASE(tx_mempool_reject_coinbase, TestChain100Setup)
     // Check that the transaction hasn't been added to mempool.
     BOOST_CHECK_EQUAL(mempool.size(), initialPoolSize);
 
-    // Check that the validation state reflects the unsuccesful attempt.
+    // Check that the validation state reflects the unsuccessful attempt.
     BOOST_CHECK(state.IsInvalid());
     BOOST_CHECK_EQUAL(state.GetRejectReason(), "coinbase");