Remove most trailing newlines from translated messages.

They are a hassle for translators and reviewers alike.

Change-Id: I07c1b61e8b6719e54fdc1f69cf63f573119a6776
Reviewed-by: hjk <hjk121@nokiamail.com>
Reviewed-by: Robert Loehning <robert.loehning@digia.com>
Reviewed-by: Eike Ziller <eike.ziller@digia.com>

src/plugins/debugger/gdb/gdbplainengine.cpp

@@ -78,7 +78,7 @@ void GdbPlainEngine::handleFileExecAndSymbols(const GdbResponse &response)
         QString msg = fromLocalEncoding(ba);
         // Extend the message a bit in unknown cases.
         if (!ba.endsWith("File format not recognized"))
-            msg = tr("Starting executable failed:\n") + msg;
+            msg = tr("Starting executable failed:") + QLatin1Char('\n') + msg;
         notifyInferiorSetupFailed(msg);
     }
 }