Main: output exception stream directly to stdout

printf is used to output formated stringstream. Not only introductory
information is somewhat repeated, but text can be sent directly to
standard output.

src/Main/MainPy.cpp

@@ -45,7 +45,6 @@
 #endif  // HAVE_CONFIG_H
 
 #include <cstdio>
-#include <sstream>
 #include <iostream>
 #include <QByteArray>
 
@@ -176,11 +175,10 @@ PyMOD_INIT_FUNC(FreeCAD)
     }
     catch (const Base::Exception& e) {
         std::string appName = App::Application::Config()["ExeName"];
-        std::stringstream msg;
-        msg << "While initializing " << appName << " the following exception occurred: '"
-            << e.what() << "'\n\n";
-        msg << "\nPlease contact the application's support team for more information.\n\n";
-        printf("Initialization of %s failed:\n%s", appName.c_str(), msg.str().c_str());
+        std::cout << "While initializing " << appName << " the following exception occurred: '"
+                  << e.what() << "'\n\n";
+        std::cout << "Please contact the application's support team for more information."
+                  << std::endl;
     }
 
     Base::EmptySequencer* seq = new Base::EmptySequencer();