Fix checking whether the user is root

This relates to Bug 1531

src/main.cpp

@@ -134,7 +134,7 @@ int main ( int argc, char *argv[] )
 	}
 	else
 	{
-// 		if (getenv("USER") != "root")
+// 		if (getenv("USER") != TQString("root"))
 // 		{
 // 			KMessageBox::error( 0, I18N_NOOP( "Kvpnc must be started as root!" ) );
 // 			exit(0);