Method ~FileExtendLockGuard

src/jrd/os/win32/winnt.cpp:77–86

	}

	~FileExtendLockGuard()
	{
		if (m_lock)
		{
			if (m_exclusive)
				m_lock->endWrite();
			else
				m_lock->endRead();
		}
	}

private:
	// copying is prohibited