diff --git a/src/bitcoind.cpp b/src/bitcoind.cpp
index 6851f862976..4836b916331 100644
--- a/src/bitcoind.cpp
+++ b/src/bitcoind.cpp
@@ -120,7 +120,7 @@ static bool AppInit(NodeContext& node, int argc, char* argv[])
     SetupServerArgs(args);
     std::string error;
     if (!args.ParseParameters(argc, argv, error)) {
-        return InitError(Untranslated(strprintf("Error parsing command line arguments: %s\n", error)));
+        return InitError(Untranslated(strprintf("Error parsing command line arguments: %s", error)));
     }
 
     // Process help and version before taking care about datadir
@@ -151,22 +151,22 @@ static bool AppInit(NodeContext& node, int argc, char* argv[])
     try
     {
         if (!CheckDataDirOption(args)) {
-            return InitError(Untranslated(strprintf("Specified data directory \"%s\" does not exist.\n", args.GetArg("-datadir", ""))));
+            return InitError(Untranslated(strprintf("Specified data directory \"%s\" does not exist.", args.GetArg("-datadir", ""))));
         }
         if (!args.ReadConfigFiles(error, true)) {
-            return InitError(Untranslated(strprintf("Error reading configuration file: %s\n", error)));
+            return InitError(Untranslated(strprintf("Error reading configuration file: %s", error)));
         }
         // Check for chain settings (Params() calls are only valid after this clause)
         try {
             SelectParams(args.GetChainName());
         } catch (const std::exception& e) {
-            return InitError(Untranslated(strprintf("%s\n", e.what())));
+            return InitError(Untranslated(strprintf("%s", e.what())));
         }
 
         // Error out when loose non-argument tokens are encountered on command line
         for (int i = 1; i < argc; i++) {
             if (!IsSwitchChar(argv[i][0])) {
-                return InitError(Untranslated(strprintf("Command line contains unexpected token '%s', see bitcoind -h for a list of options.\n", argv[i])));
+                return InitError(Untranslated(strprintf("Command line contains unexpected token '%s', see bitcoind -h for a list of options.", argv[i])));
             }
         }
 
@@ -210,7 +210,7 @@ static bool AppInit(NodeContext& node, int argc, char* argv[])
                 }
                 break;
             case -1: // Error happened.
-                return InitError(Untranslated(strprintf("fork_daemon() failed: %s\n", SysErrorString(errno))));
+                return InitError(Untranslated(strprintf("fork_daemon() failed: %s", SysErrorString(errno))));
             default: { // Parent: wait and exit.
                 int token = daemon_ep.TokenRead();
                 if (token) { // Success
@@ -222,7 +222,7 @@ static bool AppInit(NodeContext& node, int argc, char* argv[])
             }
             }
 #else
-            return InitError(Untranslated("-daemon is not supported on this operating system\n"));
+            return InitError(Untranslated("-daemon is not supported on this operating system"));
 #endif // HAVE_DECL_FORK
         }
         // Lock data directory after daemonization
diff --git a/src/qt/bitcoin.cpp b/src/qt/bitcoin.cpp
index 99faa51ea0d..440f475757c 100644
--- a/src/qt/bitcoin.cpp
+++ b/src/qt/bitcoin.cpp
@@ -176,7 +176,7 @@ static bool InitSettings()
     if (!gArgs.ReadSettingsFile(&errors)) {
         std::string error = QT_TRANSLATE_NOOP("bitcoin-core", "Settings file could not be read");
         std::string error_translated = QCoreApplication::translate("bitcoin-core", error.c_str()).toStdString();
-        InitError(Untranslated(strprintf("%s:\n%s\n", error, MakeUnorderedList(errors))));
+        InitError(Untranslated(strprintf("%s:\n%s", error, MakeUnorderedList(errors))));
 
         QMessageBox messagebox(QMessageBox::Critical, PACKAGE_NAME, QString::fromStdString(strprintf("%s.", error_translated)), QMessageBox::Reset | QMessageBox::Abort);
         /*: Explanatory text shown on startup when the settings file cannot be read.
@@ -199,7 +199,7 @@ static bool InitSettings()
     if (!gArgs.WriteSettingsFile(&errors)) {
         std::string error = QT_TRANSLATE_NOOP("bitcoin-core", "Settings file could not be written");
         std::string error_translated = QCoreApplication::translate("bitcoin-core", error.c_str()).toStdString();
-        InitError(Untranslated(strprintf("%s:\n%s\n", error, MakeUnorderedList(errors))));
+        InitError(Untranslated(strprintf("%s:\n%s", error, MakeUnorderedList(errors))));
 
         QMessageBox messagebox(QMessageBox::Critical, PACKAGE_NAME, QString::fromStdString(strprintf("%s.", error_translated)), QMessageBox::Ok);
         /*: Explanatory text shown on startup when the settings file could not be written.
@@ -546,7 +546,7 @@ int GuiMain(int argc, char* argv[])
     SetupUIArgs(gArgs);
     std::string error;
     if (!gArgs.ParseParameters(argc, argv, error)) {
-        InitError(strprintf(Untranslated("Error parsing command line arguments: %s\n"), error));
+        InitError(strprintf(Untranslated("Error parsing command line arguments: %s"), error));
         // Create a message box, because the gui has neither been created nor has subscribed to core signals
         QMessageBox::critical(nullptr, PACKAGE_NAME,
             // message cannot be translated because translations have not been initialized
@@ -589,7 +589,7 @@ int GuiMain(int argc, char* argv[])
 
     /// 6a. Determine availability of data directory
     if (!CheckDataDirOption(gArgs)) {
-        InitError(strprintf(Untranslated("Specified data directory \"%s\" does not exist.\n"), gArgs.GetArg("-datadir", "")));
+        InitError(strprintf(Untranslated("Specified data directory \"%s\" does not exist."), gArgs.GetArg("-datadir", "")));
         QMessageBox::critical(nullptr, PACKAGE_NAME,
             QObject::tr("Error: Specified data directory \"%1\" does not exist.").arg(QString::fromStdString(gArgs.GetArg("-datadir", ""))));
         return EXIT_FAILURE;
@@ -598,7 +598,7 @@ int GuiMain(int argc, char* argv[])
         /// 6b. Parse bitcoin.conf
         /// - Do not call gArgs.GetDataDirNet() before this step finishes
         if (!gArgs.ReadConfigFiles(error, true)) {
-            InitError(strprintf(Untranslated("Error reading configuration file: %s\n"), error));
+            InitError(strprintf(Untranslated("Error reading configuration file: %s"), error));
             QMessageBox::critical(nullptr, PACKAGE_NAME,
                 QObject::tr("Error: Cannot parse configuration file: %1.").arg(QString::fromStdString(error)));
             return EXIT_FAILURE;
@@ -613,7 +613,7 @@ int GuiMain(int argc, char* argv[])
         // Check for chain settings (Params() calls are only valid after this clause)
         SelectParams(gArgs.GetChainName());
     } catch(std::exception &e) {
-        InitError(Untranslated(strprintf("%s\n", e.what())));
+        InitError(Untranslated(strprintf("%s", e.what())));
         QMessageBox::critical(nullptr, PACKAGE_NAME, QObject::tr("Error: %1").arg(e.what()));
         return EXIT_FAILURE;
     }