Log Message:
socat: Update to 1.7.3.4

####################### V 1.7.3.4:

Corrections:
	Header of xiotermios_speed() declared parameter unsigned int instead of
	speed_t, thus compiling failed on MacOS
	Thanks to Joe Strout and others for reporting this bug.
	Thanks to Andrew Childs and others for sending a patch.

	Under certain circumstances, termios options of the first address were
	applied to the second address, resulting in error
	"Inappropriate ioctl for device"
	This affected version 1.7.3.3 only.
	Test: TERMIOS_PH_ALL
	Thanks to Ivan J. for reporting this issue.

	Socat failed to compile when no poll() system call was found by
	configure.
	Thanks to Jason White for sending a patch.

	Due to use of SSL_CTX_clear_mode() Socat failed to compile on old
	systems with, e.g., OpenSSL-0.9.8. Thanks to Simon Matter and Moritz B.
	for reporting this problem and sending initial patches.

	getaddrinfo() in IP4-SENDTO and IP6-SENDTO addresses failed with
	"ai_socktype not supported" when protocol 6 was addressed.
	The fix removes the possibility to use service names with SCTP.
	Test: IP_SENDTO_6
	Thanks to Sören for sending an initial patch.

	Under certain circumstances, Socat printed the "socket ... is at EOF"
	multiple times.
	Test: MULTIPLE_EOF

	Newer parts of test.sh used substitutions ${x,,*} or ${x^^*} that are
	not implemented in older bash versions.