input/thread: add "noexcept"

src/input/plugins/MmsInputPlugin.cxx

@@ -43,7 +43,7 @@ protected:
 	virtual void Open() override;
 	virtual size_t ThreadRead(void *ptr, size_t size) override;
 
-	void Close() override {
+	void Close() noexcept override {
 		mmsx_close(mms);
 	}
 };