Update a2ps to version 4.15.6 / rev 54 via SR 1175467
https://build.opensuse.org/request/show/1175467
by user WernerFink + anag+factory
- Updated to 4.15.6 (boo#1224770)
* Noteworthy changes in release 4.15.6 (2024-03-13) [stable]
* Bug fixes:
- Fix a2ps-lpr-wrapper to work with no arguments, as a2ps requires.
- Minor fixes & improvements to sheets.map for image types and PDF.
* Build system:
- Minor fixes and improvements.
- Port patches
* a2ps-4.14.diff
* a2ps-buildcompare.patch