Log Message:
Update to 1.7.4:

CHANGES IN CUPS V1.7.4

	- Security: The web interface incorrectly served symlinked files and
	  files that were not world-readable, potentially leading to a
	  disclosure of information (STR #4450)
	- The CUPS headers incorrectly needed libdispatch for blocks support
	  (STR #4397)
	- CUPS did not compile when Avahi or mDNSResponder was not present
	  (STR #4402, STR #4424)
	- The "snmp" option did not work with the network backends (STR #4422)
	- The User directive in client.conf did not override the USER
	  environment variable (STR #4426)
	- The web interface now properly shows a "Go" button for all text-based
	  browsers (STR #4425)
	- The MaxJobTime directive now properly supports time values (STR #4434)
	- The RPM spec file did not work due to the new Brazilian Portuguese
	  localization (STR #4436)
	- Fixed an "IPP read error" issue (STR #4440)
	- Fixed the --disable-libusb configure option (STR #4439)
	- Fixed the debug output from the DNS-SD backend when using Avahi
	  (STR #4444)
	- Fixed a bug in the CUPS_SC_GET_DEVICE_ID handling by the network
	  backends (STR #4447)
	- Added USB quirk rule for Lexmark E230 (STR #4448)
	- The LPD backend did not work with some versions of glibc (STR #4452)