refactor: remove unnecessary AppendWarning helper function

Author: stickies-v

src/validation.cpp

@@ -31,10 +31,10 @@
 #include <logging/timer.h>
 #include <node/blockstorage.h>
 #include <node/utxo_snapshot.h>
-#include <policy/v3_policy.h>
 #include <policy/policy.h>
 #include <policy/rbf.h>
 #include <policy/settings.h>
+#include <policy/v3_policy.h>
 #include <pow.h>
 #include <primitives/block.h>
 #include <primitives/transaction.h>
@@ -57,6 +57,7 @@
 #include <util/result.h>
 #include <util/signalinterrupt.h>
 #include <util/strencodings.h>
+#include <util/string.h>
 #include <util/time.h>
 #include <util/trace.h>
 #include <util/translation.h>
@@ -2847,13 +2848,6 @@ void Chainstate::PruneAndFlush()
     }
 }
 
-/** Private helper function that concatenates warning messages. */
-static void AppendWarning(bilingual_str& res, const bilingual_str& warn)
-{
-    if (!res.empty()) res += Untranslated(", ");
-    res += warn;
-}
-
 static void UpdateTipLog(
     const CCoinsViewCache& coins_tip,
     const CBlockIndex* tip,
@@ -2904,7 +2898,7 @@ void Chainstate::UpdateTip(const CBlockIndex* pindexNew)
         g_best_block_cv.notify_all();
     }
 
-    bilingual_str warning_messages;
+    std::vector<bilingual_str> warning_messages;
     if (!m_chainman.IsInitialBlockDownload()) {
         const CBlockIndex* pindex = pindexNew;
         for (int bit = 0; bit < VERSIONBITS_NUM_BITS; bit++) {
@@ -2915,12 +2909,13 @@ void Chainstate::UpdateTip(const CBlockIndex* pindexNew)
                 if (state == ThresholdState::ACTIVE) {
                     m_chainman.GetNotifications().warning(warning);
                 } else {
-                    AppendWarning(warning_messages, warning);
+                    warning_messages.push_back(warning);
                 }
             }
         }
     }
-    UpdateTipLog(coins_tip, pindexNew, params, __func__, "", warning_messages.original);
+    UpdateTipLog(coins_tip, pindexNew, params, __func__, "",
+                 util::Join(warning_messages, Untranslated(", ")).original);
 }
 
 /** Disconnect m_chain's tip.