* sec_auth.cc (cygwin_logon_user): Securely erase password copy.
	(lsaprivkeyauth): Avoid trying to dereference data if no key is stored
	in the registry (CID 60122).  Securely erase passwords after usage.
	* sec_auth.cc (cygwin_logon_user): Securely erase password copy.
	(lsaprivkeyauth): Avoid trying to dereference data if no key is stored
	in the registry (CID 60122).  Securely erase passwords after usage.
	* fhandler_floppy.cc (fhandler_dev_floppy::get_drive_info): Fix floppy
	drive handling broken with 1.7.19.
	* fhandler_floppy.cc (fhandler_dev_floppy::get_drive_info): Fix floppy
	drive handling broken with 1.7.19.
	* fhandler_floppy.cc (fhandler_dev_floppy::get_drive_info): Fix floppy
	drive handling broken with 1.7.19.