Prefer $XDG_CONFIG_HOME/ncmpcpp as a folder with configuration

src/configuration.cpp

@@ -74,13 +74,13 @@ void expand_home(std::string &path)
 bool configure(int argc, char **argv)
 {
 	const std::vector<std::string> default_config_paths = {
-		"~/.ncmpcpp/config",
-		xdg_config_home() + "ncmpcpp/config"
+		xdg_config_home() + "ncmpcpp/config",
+		"~/.ncmpcpp/config"
 	};
 
 	const std::vector<std::string> default_bindings_paths = {
-		"~/.ncmpcpp/bindings",
-		xdg_config_home() + "ncmpcpp/bindings"
+		xdg_config_home() + "ncmpcpp/bindings",
+		"~/.ncmpcpp/bindings"
 	};
 
 	std::vector<std::string> bindings_paths;

src/ncmpcpp.cpp

@@ -103,7 +103,7 @@ int main(int argc, char **argv)
 	// always execute these commands, even if ncmpcpp use exit function
 	atexit(do_at_exit);
 	
-	// redirect std::cerr output to ~/.ncmpcpp/error.log file
+	// redirect std::cerr output to the error.log file
 	errorlog.open((Config.ncmpcpp_directory + "error.log").c_str(), std::ios::app);
 	cerr_buffer = std::cerr.rdbuf();
 	std::cerr.rdbuf(errorlog.rdbuf());

src/settings.cpp

@@ -235,7 +235,7 @@ bool Configuration::read(const std::vector<std::string> &config_paths, bool igno
 	});
 
 	// keep the same order of variables as in configuration file
-	p.add("ncmpcpp_directory", &ncmpcpp_directory, "~/.ncmpcpp/", adjust_directory);
+	p.add("ncmpcpp_directory", &ncmpcpp_directory, "~/.config/ncmpcpp/", adjust_directory);
 	p.add("lyrics_directory", &lyrics_directory, "~/.lyrics/", adjust_directory);
 	p.add<void>("mpd_host", nullptr, "localhost", [](std::string host) {
 			expand_home(host);