Bugfix: respect user defined configuration file (-conf) when open conf. file from QT settings

src/qt/guiutil.cpp

@@ -417,7 +417,7 @@ void openDebugLogfile()
 
 bool openBitcoinConf()
 {
-    boost::filesystem::path pathConfig = GetConfigFile(BITCOIN_CONF_FILENAME);
+    boost::filesystem::path pathConfig = GetConfigFile(gArgs.GetArg("-conf", BITCOIN_CONF_FILENAME));
 
     /* Create the file */
     boost::filesystem::ofstream configFile(pathConfig, std::ios_base::app);