ProjectExplorer: Fix LLDB stdout lines

DebuggerEngine::appendMessageRequested specifies if a newline
should be added, but RunWorker::appendMessage did not use that
information.

Fixes: QTCREATORBUG-29098
Change-Id: I5ab1e489f691038fe1d9ea4a4d4b04429e403e0d
Reviewed-by: hjk <hjk@qt.io>
Reviewed-by: <github-actions-qt-creator@cristianadam.eu>

src/plugins/valgrind/valgrindengine.cpp

@@ -39,8 +39,10 @@ ValgrindToolRunner::ValgrindToolRunner(RunControl *runControl)
 
     m_settings.fromMap(runControl->settingsData(ANALYZER_VALGRIND_SETTINGS));
 
-    connect(&m_runner, &ValgrindRunner::appendMessage,
-            this, &ValgrindToolRunner::appendMessage);
+    connect(&m_runner,
+            &ValgrindRunner::appendMessage,
+            this,
+            [this](const QString &msg, Utils::OutputFormat format) { appendMessage(msg, format); });
     connect(&m_runner, &ValgrindRunner::valgrindExecuted,
             this, [this](const QString &commandLine) {
         appendMessage(commandLine, NormalMessageFormat);