Log Message:
cups{,-base}: Update print/cups{,-base} to 2.2.7

pkgsrc changes:
- Get rid of extra `/' in patches/patch-config-scripts_cups-opsys.m4
  (NFCI, pointed out by mkpatches).
- Add to patches/patch-scheduler_auth.c a backport of issue #5283 to fix build
  without PAM. This will be not needed in cups-2.2.8.

Changes:
CUPS v2.2.7
-----------
- NOTICE: Raw print queues are now deprecated (Issue #5269)
- Fixed an Avahi crash bug in the scheduler (Issue #5268)
- The IPP Everywhere PPD generator did not include the `cupsJobPassword`
  keyword, when supported (Issue #5265)
- Systemd did not restart cupsd when configuration changes were made that
  required a restart (Issue #5263)
- The Lexmark Optra E310 printer needs the "no-reattach" USB quirk rule
  (Issue #5259)
- The scheduler could crash while adding an IPP Everywhere printer (Issue #5258)
- Label printers supported by the rastertolabel driver don't support SNMP, so
  don't delay printing to test it (Issue #5256)
- Fixed a compile issue when PAM is not available (Issue #5253)
- Documentation fixes (Issue #5252)
- Star Micronics printers need the "unidir" USB quirk rule (Issue #5251)
- The scheduler now supports using temporary print queues for older IPP/1.1
  print queues like those shared by CUPS 1.3 and earlier (Issue #5241)
- Fixed printing to some IPP Everywhere printers (Issue #5238)
- Kerberized printing to another CUPS server did not work correctly
  (Issue #5233)
- The `cupsRasterWritePixels` function did not correctly swap bytes for some
  formats (Issue #5225)
- Added a USB quirk rule for Canon MP280 series printers (Issue #5221)
- The `ppdInstallableConflict` tested too many constraints (Issue #5213)
- More fixes for printing to old CUPS servers (Issue #5211)
- The `cupsCopyDest` function now correctly copies the `is_default` value
  (Issue #5208)
- The scheduler did not work with older versions of uClibc (Issue #5188)
- The scheduler now substitutes default values for invalid job attributes when
  running in "relaxed conformance" mode (Issue #5186)
- Fixed PAM module detection and added support for the common PAM definitions
  (Issue #5185)
- Fixed a journald support bug in the scheduler (Issue #5181)
- The cups-driverd program incorrectly stopped scanning PPDs as soon as a loop
  was seen (Issue #5170)
- Fixed group validation on OpenBSD (Issue #5166)
- Fixed the `ippserver` sample code when threading is disabled or unavailable
  (Issue #5154)
- The `cupsEnumDests` function did not include options from the lpoptions files
  (Issue #5144)
- The `SSLOptions` directive now supports `MinTLS` and `MaxTLS` options to
  control the minimum and maximum TLS versions that will be allowed,
  respectively (Issue #5119)
- The scheduler did not write out dirty configuration and state files if there
  were open client connections (Issue #5118)
- The `lpadmin` command now provides a better error message when an unsupported
  System V interface script is used (Issue #5111)
- The `lp` and `lpr` commands now provide better error messages when the default
  printer cannot be found (Issue #5096)
- No longer support backslash, question mark, or quotes in printer names
  (Issue #4966)
- The CUPS library now supports the latest HTTP Digest authentication
  specification including support for SHA-256 (Issue #4862)
- The `lpstat` command now reports when new jobs are being held (Issue #4761)
- The `lpoptions` command incorrectly saved default options (Issue #4717)
- The `ppdLocalizeIPPReason` function incorrectly returned a localized version
  of "none" (rdar://36566269)
- TLS connections now properly timeout (rdar://34938533)
- The IPP backend did not properly detect failed PDF prints (rdar://34055474)
- Temporary files are now placed in the correct directory for sandboxed
  applications on macOS (rdar://problem/37789645)